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Finding the Fourth Proportional to 125,614.72, 188,423.16 and 36,869.68

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Solution

The fourth proportional to 125,614.72, 188,423.16 and 36,869.68 is: 55,304.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,614.72 : 188,423.16 = 36,869.68 : x
  2. Step 2: Convert to fraction form
    125,614.72/188,423.16 = 36,869.68/x
  3. Step 3: Cross multiply
    125,614.72x = 188,423.16 × 36,869.68
  4. Step 4: Simplify right side
    125,614.72x = 6,947,101,613.79
  5. Step 5: Solve for x
    x = 6,947,101,613.79/125,614.72
  6. Step 6: Final answer
    x = 55,304.84

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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.