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Finding the Fourth Proportional to 83,951.56, 115,861.32 and 62,693.92

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Solution

The fourth proportional to 83,951.56, 115,861.32 and 62,693.92 is: 86,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,951.56 : 115,861.32 = 62,693.92 : x
  2. Step 2: Convert to fraction form
    83,951.56/115,861.32 = 62,693.92/x
  3. Step 3: Cross multiply
    83,951.56x = 115,861.32 × 62,693.92
  4. Step 4: Simplify right side
    83,951.56x = 7,263,799,820.28
  5. Step 5: Solve for x
    x = 7,263,799,820.28/83,951.56
  6. Step 6: Final answer
    x = 86,523.71

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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.