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Finding the Fourth Proportional to 71,469.69, 107,179.38 and 29,337.54

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Solution

The fourth proportional to 71,469.69, 107,179.38 and 29,337.54 is: 43,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,469.69 : 107,179.38 = 29,337.54 : x
  2. Step 2: Convert to fraction form
    71,469.69/107,179.38 = 29,337.54/x
  3. Step 3: Cross multiply
    71,469.69x = 107,179.38 × 29,337.54
  4. Step 4: Simplify right side
    71,469.69x = 3,144,379,347.93
  5. Step 5: Solve for x
    x = 3,144,379,347.93/71,469.69
  6. Step 6: Final answer
    x = 43,995.98

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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.