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Finding the Fourth Proportional to 71,807.90, 107,712.63 and 25,060.94

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Solution

The fourth proportional to 71,807.90, 107,712.63 and 25,060.94 is: 37,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,807.90 : 107,712.63 = 25,060.94 : x
  2. Step 2: Convert to fraction form
    71,807.90/107,712.63 = 25,060.94/x
  3. Step 3: Cross multiply
    71,807.90x = 107,712.63 × 25,060.94
  4. Step 4: Simplify right side
    71,807.90x = 2,699,379,757.67
  5. Step 5: Solve for x
    x = 2,699,379,757.67/71,807.90
  6. Step 6: Final answer
    x = 37,591.68

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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.