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Finding the Fourth Proportional to 71,179.29, 106,781.76 and 23,789.70

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Solution

The fourth proportional to 71,179.29, 106,781.76 and 23,789.70 is: 35,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,179.29 : 106,781.76 = 23,789.70 : x
  2. Step 2: Convert to fraction form
    71,179.29/106,781.76 = 23,789.70/x
  3. Step 3: Cross multiply
    71,179.29x = 106,781.76 × 23,789.70
  4. Step 4: Simplify right side
    71,179.29x = 2,540,306,035.87
  5. Step 5: Solve for x
    x = 2,540,306,035.87/71,179.29
  6. Step 6: Final answer
    x = 35,688.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.