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Finding the Fourth Proportional to 125,381.30, 188,069.96 and 50,499.68

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Solution

The fourth proportional to 125,381.30, 188,069.96 and 50,499.68 is: 75,748.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,381.30 : 188,069.96 = 50,499.68 : x
  2. Step 2: Convert to fraction form
    125,381.30/188,069.96 = 50,499.68/x
  3. Step 3: Cross multiply
    125,381.30x = 188,069.96 × 50,499.68
  4. Step 4: Simplify right side
    125,381.30x = 9,497,472,797.61
  5. Step 5: Solve for x
    x = 9,497,472,797.61/125,381.30
  6. Step 6: Final answer
    x = 75,748.72

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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.