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Finding the Fourth Proportional to 125,171.53, 187,788.02 and 36,425.80

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Solution

The fourth proportional to 125,171.53, 187,788.02 and 36,425.80 is: 54,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,171.53 : 187,788.02 = 36,425.80 : x
  2. Step 2: Convert to fraction form
    125,171.53/187,788.02 = 36,425.80/x
  3. Step 3: Cross multiply
    125,171.53x = 187,788.02 × 36,425.80
  4. Step 4: Simplify right side
    125,171.53x = 6,840,329,116.42
  5. Step 5: Solve for x
    x = 6,840,329,116.42/125,171.53
  6. Step 6: Final answer
    x = 54,647.64

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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.