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Finding the Fourth Proportional to 71,600.96, 107,375.88 and 27,215.90

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Solution

The fourth proportional to 71,600.96, 107,375.88 and 27,215.90 is: 40,814.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,600.96 : 107,375.88 = 27,215.90 : x
  2. Step 2: Convert to fraction form
    71,600.96/107,375.88 = 27,215.90/x
  3. Step 3: Cross multiply
    71,600.96x = 107,375.88 × 27,215.90
  4. Step 4: Simplify right side
    71,600.96x = 2,922,331,212.49
  5. Step 5: Solve for x
    x = 2,922,331,212.49/71,600.96
  6. Step 6: Final answer
    x = 40,814.13

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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.