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Finding the Fourth Proportional to 125,269.88, 187,934.00 and 42,163.88

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Solution

The fourth proportional to 125,269.88, 187,934.00 and 42,163.88 is: 63,255.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,269.88 : 187,934.00 = 42,163.88 : x
  2. Step 2: Convert to fraction form
    125,269.88/187,934.00 = 42,163.88/x
  3. Step 3: Cross multiply
    125,269.88x = 187,934.00 × 42,163.88
  4. Step 4: Simplify right side
    125,269.88x = 7,924,025,473.43
  5. Step 5: Solve for x
    x = 7,924,025,473.43/125,269.88
  6. Step 6: Final answer
    x = 63,255.63

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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.