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Finding the Fourth Proportional to 71,818.80, 107,660.04 and 25,059.12

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Solution

The fourth proportional to 71,818.80, 107,660.04 and 25,059.12 is: 37,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,818.80 : 107,660.04 = 25,059.12 : x
  2. Step 2: Convert to fraction form
    71,818.80/107,660.04 = 25,059.12/x
  3. Step 3: Cross multiply
    71,818.80x = 107,660.04 × 25,059.12
  4. Step 4: Simplify right side
    71,818.80x = 2,697,865,861.56
  5. Step 5: Solve for x
    x = 2,697,865,861.56/71,818.80
  6. Step 6: Final answer
    x = 37,564.90

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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.