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Finding the Fourth Proportional to 125,074.42, 187,614.69 and 36,328.69

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Solution

The fourth proportional to 125,074.42, 187,614.69 and 36,328.69 is: 54,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,074.42 : 187,614.69 = 36,328.69 : x
  2. Step 2: Convert to fraction form
    125,074.42/187,614.69 = 36,328.69/x
  3. Step 3: Cross multiply
    125,074.42x = 187,614.69 × 36,328.69
  4. Step 4: Simplify right side
    125,074.42x = 6,815,795,912.46
  5. Step 5: Solve for x
    x = 6,815,795,912.46/125,074.42
  6. Step 6: Final answer
    x = 54,493.92

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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.