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Finding the Fourth Proportional to 126,761.62, 174,933.11 and 69,399.98

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Solution

The fourth proportional to 126,761.62, 174,933.11 and 69,399.98 is: 95,773.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,761.62 : 174,933.11 = 69,399.98 : x
  2. Step 2: Convert to fraction form
    126,761.62/174,933.11 = 69,399.98/x
  3. Step 3: Cross multiply
    126,761.62x = 174,933.11 × 69,399.98
  4. Step 4: Simplify right side
    126,761.62x = 12,140,354,425.67
  5. Step 5: Solve for x
    x = 12,140,354,425.67/126,761.62
  6. Step 6: Final answer
    x = 95,773.11

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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.