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Finding the Fourth Proportional to 73,874, 101,910.60 and 43,651.28

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Solution

The fourth proportional to 73,874, 101,910.60 and 43,651.28 is: 60,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,874 : 101,910.60 = 43,651.28 : x
  2. Step 2: Convert to fraction form
    73,874/101,910.60 = 43,651.28/x
  3. Step 3: Cross multiply
    73,874x = 101,910.60 × 43,651.28
  4. Step 4: Simplify right side
    73,874x = 4,448,528,135.57
  5. Step 5: Solve for x
    x = 4,448,528,135.57/73,874
  6. Step 6: Final answer
    x = 60,217.78

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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.