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Finding the Fourth Proportional to 125,287.55, 187,913.09 and 36,517.22

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Solution

The fourth proportional to 125,287.55, 187,913.09 and 36,517.22 is: 54,770.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,287.55 : 187,913.09 = 36,517.22 : x
  2. Step 2: Convert to fraction form
    125,287.55/187,913.09 = 36,517.22/x
  3. Step 3: Cross multiply
    125,287.55x = 187,913.09 × 36,517.22
  4. Step 4: Simplify right side
    125,287.55x = 6,862,063,648.41
  5. Step 5: Solve for x
    x = 6,862,063,648.41/125,287.55
  6. Step 6: Final answer
    x = 54,770.52

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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.