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Finding the Fourth Proportional to 125,129.44, 187,712.47 and 36,371.41

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Solution

The fourth proportional to 125,129.44, 187,712.47 and 36,371.41 is: 54,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,129.44 : 187,712.47 = 36,371.41 : x
  2. Step 2: Convert to fraction form
    125,129.44/187,712.47 = 36,371.41/x
  3. Step 3: Cross multiply
    125,129.44x = 187,712.47 × 36,371.41
  4. Step 4: Simplify right side
    125,129.44x = 6,827,367,840.55
  5. Step 5: Solve for x
    x = 6,827,367,840.55/125,129.44
  6. Step 6: Final answer
    x = 54,562.44

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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.