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Finding the Fourth Proportional to 71,160.85, 106,659.10 and 26,759.28

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Solution

The fourth proportional to 71,160.85, 106,659.10 and 26,759.28 is: 40,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,160.85 : 106,659.10 = 26,759.28 : x
  2. Step 2: Convert to fraction form
    71,160.85/106,659.10 = 26,759.28/x
  3. Step 3: Cross multiply
    71,160.85x = 106,659.10 × 26,759.28
  4. Step 4: Simplify right side
    71,160.85x = 2,854,120,721.45
  5. Step 5: Solve for x
    x = 2,854,120,721.45/71,160.85
  6. Step 6: Final answer
    x = 40,108.02

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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.