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Finding the Fourth Proportional to 144,737.55, 217,127.26 and 54,755.87

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Solution

The fourth proportional to 144,737.55, 217,127.26 and 54,755.87 is: 82,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,737.55 : 217,127.26 = 54,755.87 : x
  2. Step 2: Convert to fraction form
    144,737.55/217,127.26 = 54,755.87/x
  3. Step 3: Cross multiply
    144,737.55x = 217,127.26 × 54,755.87
  4. Step 4: Simplify right side
    144,737.55x = 11,888,991,819.05
  5. Step 5: Solve for x
    x = 11,888,991,819.05/144,737.55
  6. Step 6: Final answer
    x = 82,141.72

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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.