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Finding the Fourth Proportional to 125,487.92, 188,248.24 and 66,325.84

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Solution

The fourth proportional to 125,487.92, 188,248.24 and 66,325.84 is: 99,497.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,487.92 : 188,248.24 = 66,325.84 : x
  2. Step 2: Convert to fraction form
    125,487.92/188,248.24 = 66,325.84/x
  3. Step 3: Cross multiply
    125,487.92x = 188,248.24 × 66,325.84
  4. Step 4: Simplify right side
    125,487.92x = 12,485,722,646.52
  5. Step 5: Solve for x
    x = 12,485,722,646.52/125,487.92
  6. Step 6: Final answer
    x = 99,497.41

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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.