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Finding the Fourth Proportional to 71,694.70, 107,563.92 and 36,658.96

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Solution

The fourth proportional to 71,694.70, 107,563.92 and 36,658.96 is: 54,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,694.70 : 107,563.92 = 36,658.96 : x
  2. Step 2: Convert to fraction form
    71,694.70/107,563.92 = 36,658.96/x
  3. Step 3: Cross multiply
    71,694.70x = 107,563.92 × 36,658.96
  4. Step 4: Simplify right side
    71,694.70x = 3,943,181,440.72
  5. Step 5: Solve for x
    x = 3,943,181,440.72/71,694.70
  6. Step 6: Final answer
    x = 54,999.62

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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.