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Finding the Fourth Proportional to 125,149.81, 187,724.59 and 50,269.97

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Solution

The fourth proportional to 125,149.81, 187,724.59 and 50,269.97 is: 75,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,149.81 : 187,724.59 = 50,269.97 : x
  2. Step 2: Convert to fraction form
    125,149.81/187,724.59 = 50,269.97/x
  3. Step 3: Cross multiply
    125,149.81x = 187,724.59 × 50,269.97
  4. Step 4: Simplify right side
    125,149.81x = 9,436,909,256.21
  5. Step 5: Solve for x
    x = 9,436,909,256.21/125,149.81
  6. Step 6: Final answer
    x = 75,404.90

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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.