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Solution for 128.5 is what percent of 42:

128.5:42*100 =

(128.5*100):42 =

12850:42 = 305.95238095238

Now we have: 128.5 is what percent of 42 = 305.95238095238

Question: 128.5 is what percent of 42?

Percentage solution with steps:

Step 1: We make the assumption that 42 is 100% since it is our output value.

Step 2: We next represent the value we seek with {x}.

Step 3: From step 1, it follows that {100\%}={42}.

Step 4: In the same vein, {x\%}={128.5}.

Step 5: This gives us a pair of simple equations:

{100\%}={42}(1).

{x\%}={128.5}(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

\frac{100\%}{x\%}=\frac{42}{128.5}

Step 7: Taking the inverse (or reciprocal) of both sides yields

\frac{x\%}{100\%}=\frac{128.5}{42}

\Rightarrow{x} = {305.95238095238\%}

Therefore, {128.5} is {305.95238095238\%} of {42}.

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• 128.5 is what percent of 100 = 128.5

Solution for 42 is what percent of 128.5:

42:128.5*100 =

(42*100):128.5 =

4200:128.5 = 32.684824902724

Now we have: 42 is what percent of 128.5 = 32.684824902724

Question: 42 is what percent of 128.5?

Percentage solution with steps:

Step 1: We make the assumption that 128.5 is 100% since it is our output value.

Step 2: We next represent the value we seek with {x}.

Step 3: From step 1, it follows that {100\%}={128.5}.

Step 4: In the same vein, {x\%}={42}.

Step 5: This gives us a pair of simple equations:

{100\%}={128.5}(1).

{x\%}={42}(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

\frac{100\%}{x\%}=\frac{128.5}{42}

Step 7: Taking the inverse (or reciprocal) of both sides yields

\frac{x\%}{100\%}=\frac{42}{128.5}

\Rightarrow{x} = {32.684824902724\%}

Therefore, {42} is {32.684824902724\%} of {128.5}.