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Finding the Fourth Proportional to 168,068.97, 231,935.18 and 91,588.07

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Solution

The fourth proportional to 168,068.97, 231,935.18 and 91,588.07 is: 126,391.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,068.97 : 231,935.18 = 91,588.07 : x
  2. Step 2: Convert to fraction form
    168,068.97/231,935.18 = 91,588.07/x
  3. Step 3: Cross multiply
    168,068.97x = 231,935.18 × 91,588.07
  4. Step 4: Simplify right side
    168,068.97x = 21,242,493,883.69
  5. Step 5: Solve for x
    x = 21,242,493,883.69/168,068.97
  6. Step 6: Final answer
    x = 126,391.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.