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Finding the Fourth Proportional to 157,426.74, 217,254.15 and 93,755.88

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Solution

The fourth proportional to 157,426.74, 217,254.15 and 93,755.88 is: 129,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,426.74 : 217,254.15 = 93,755.88 : x
  2. Step 2: Convert to fraction form
    157,426.74/217,254.15 = 93,755.88/x
  3. Step 3: Cross multiply
    157,426.74x = 217,254.15 × 93,755.88
  4. Step 4: Simplify right side
    157,426.74x = 20,368,854,016.90
  5. Step 5: Solve for x
    x = 20,368,854,016.90/157,426.74
  6. Step 6: Final answer
    x = 129,386.24

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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.