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Finding the Fourth Proportional to 71,265.42, 106,879.91 and 26,879.04

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Solution

The fourth proportional to 71,265.42, 106,879.91 and 26,879.04 is: 40,311.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,265.42 : 106,879.91 = 26,879.04 : x
  2. Step 2: Convert to fraction form
    71,265.42/106,879.91 = 26,879.04/x
  3. Step 3: Cross multiply
    71,265.42x = 106,879.91 × 26,879.04
  4. Step 4: Simplify right side
    71,265.42x = 2,872,829,241.69
  5. Step 5: Solve for x
    x = 2,872,829,241.69/71,265.42
  6. Step 6: Final answer
    x = 40,311.69

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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.