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Finding the Fourth Proportional to 126,063.92, 173,968.21 and 69,475.29

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Solution

The fourth proportional to 126,063.92, 173,968.21 and 69,475.29 is: 95,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,063.92 : 173,968.21 = 69,475.29 : x
  2. Step 2: Convert to fraction form
    126,063.92/173,968.21 = 69,475.29/x
  3. Step 3: Cross multiply
    126,063.92x = 173,968.21 × 69,475.29
  4. Step 4: Simplify right side
    126,063.92x = 12,086,491,493.15
  5. Step 5: Solve for x
    x = 12,086,491,493.15/126,063.92
  6. Step 6: Final answer
    x = 95,875.90

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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.