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Finding the Fourth Proportional to 69,149.57, 95,422.73 and 38,933.87

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Solution

The fourth proportional to 69,149.57, 95,422.73 and 38,933.87 is: 53,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,149.57 : 95,422.73 = 38,933.87 : x
  2. Step 2: Convert to fraction form
    69,149.57/95,422.73 = 38,933.87/x
  3. Step 3: Cross multiply
    69,149.57x = 95,422.73 × 38,933.87
  4. Step 4: Simplify right side
    69,149.57x = 3,715,175,493.08
  5. Step 5: Solve for x
    x = 3,715,175,493.08/69,149.57
  6. Step 6: Final answer
    x = 53,726.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.