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Finding the Fourth Proportional to 125,265.88, 187,427.80 and 87,898.83

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Solution

The fourth proportional to 125,265.88, 187,427.80 and 87,898.83 is: 131,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,265.88 : 187,427.80 = 87,898.83 : x
  2. Step 2: Convert to fraction form
    125,265.88/187,427.80 = 87,898.83/x
  3. Step 3: Cross multiply
    125,265.88x = 187,427.80 × 87,898.83
  4. Step 4: Simplify right side
    125,265.88x = 16,474,684,329.47
  5. Step 5: Solve for x
    x = 16,474,684,329.47/125,265.88
  6. Step 6: Final answer
    x = 131,517.73

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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.