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Finding the Fourth Proportional to 252,229.01, 378,344.87 and 74,737.55

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Solution

The fourth proportional to 252,229.01, 378,344.87 and 74,737.55 is: 112,106.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,229.01 : 378,344.87 = 74,737.55 : x
  2. Step 2: Convert to fraction form
    252,229.01/378,344.87 = 74,737.55/x
  3. Step 3: Cross multiply
    252,229.01x = 378,344.87 × 74,737.55
  4. Step 4: Simplify right side
    252,229.01x = 28,276,569,771.57
  5. Step 5: Solve for x
    x = 28,276,569,771.57/252,229.01
  6. Step 6: Final answer
    x = 112,106.73

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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.