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Finding the Fourth Proportional to 71,960.92, 107,876.04 and 25,188.28

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Solution

The fourth proportional to 71,960.92, 107,876.04 and 25,188.28 is: 37,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,960.92 : 107,876.04 = 25,188.28 : x
  2. Step 2: Convert to fraction form
    71,960.92/107,876.04 = 25,188.28/x
  3. Step 3: Cross multiply
    71,960.92x = 107,876.04 × 25,188.28
  4. Step 4: Simplify right side
    71,960.92x = 2,717,211,900.81
  5. Step 5: Solve for x
    x = 2,717,211,900.81/71,960.92
  6. Step 6: Final answer
    x = 37,759.55

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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.