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Finding the Fourth Proportional to 71,375.97, 107,064.71 and 29,245.23

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Solution

The fourth proportional to 71,375.97, 107,064.71 and 29,245.23 is: 43,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,375.97 : 107,064.71 = 29,245.23 : x
  2. Step 2: Convert to fraction form
    71,375.97/107,064.71 = 29,245.23/x
  3. Step 3: Cross multiply
    71,375.97x = 107,064.71 × 29,245.23
  4. Step 4: Simplify right side
    71,375.97x = 3,131,131,922.61
  5. Step 5: Solve for x
    x = 3,131,131,922.61/71,375.97
  6. Step 6: Final answer
    x = 43,868.15

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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.