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Finding the Fourth Proportional to 124,957.60, 187,229.04 and 87,943.84

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Solution

The fourth proportional to 124,957.60, 187,229.04 and 87,943.84 is: 131,769.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,957.60 : 187,229.04 = 87,943.84 : x
  2. Step 2: Convert to fraction form
    124,957.60/187,229.04 = 87,943.84/x
  3. Step 3: Cross multiply
    124,957.60x = 187,229.04 × 87,943.84
  4. Step 4: Simplify right side
    124,957.60x = 16,465,640,737.11
  5. Step 5: Solve for x
    x = 16,465,640,737.11/124,957.60
  6. Step 6: Final answer
    x = 131,769.82

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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.