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Finding the Fourth Proportional to 70,711.92, 97,600.68 and 43,838.64

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Solution

The fourth proportional to 70,711.92, 97,600.68 and 43,838.64 is: 60,508.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,711.92 : 97,600.68 = 43,838.64 : x
  2. Step 2: Convert to fraction form
    70,711.92/97,600.68 = 43,838.64/x
  3. Step 3: Cross multiply
    70,711.92x = 97,600.68 × 43,838.64
  4. Step 4: Simplify right side
    70,711.92x = 4,278,681,074.28
  5. Step 5: Solve for x
    x = 4,278,681,074.28/70,711.92
  6. Step 6: Final answer
    x = 60,508.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.