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Finding the Fourth Proportional to 101,229.85, 139,691.06 and 60,956.65

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Solution

The fourth proportional to 101,229.85, 139,691.06 and 60,956.65 is: 84,116.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,229.85 : 139,691.06 = 60,956.65 : x
  2. Step 2: Convert to fraction form
    101,229.85/139,691.06 = 60,956.65/x
  3. Step 3: Cross multiply
    101,229.85x = 139,691.06 × 60,956.65
  4. Step 4: Simplify right side
    101,229.85x = 8,515,098,354.09
  5. Step 5: Solve for x
    x = 8,515,098,354.09/101,229.85
  6. Step 6: Final answer
    x = 84,116.48

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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.