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Finding the Fourth Proportional to 79,761.90, 110,076.26 and 43,951.87

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Solution

The fourth proportional to 79,761.90, 110,076.26 and 43,951.87 is: 60,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,761.90 : 110,076.26 = 43,951.87 : x
  2. Step 2: Convert to fraction form
    79,761.90/110,076.26 = 43,951.87/x
  3. Step 3: Cross multiply
    79,761.90x = 110,076.26 × 43,951.87
  4. Step 4: Simplify right side
    79,761.90x = 4,838,057,469.61
  5. Step 5: Solve for x
    x = 4,838,057,469.61/79,761.90
  6. Step 6: Final answer
    x = 60,656.25

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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.