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Finding the Fourth Proportional to 71,859.62, 107,742.49 and 34,418.49

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Solution

The fourth proportional to 71,859.62, 107,742.49 and 34,418.49 is: 51,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,859.62 : 107,742.49 = 34,418.49 : x
  2. Step 2: Convert to fraction form
    71,859.62/107,742.49 = 34,418.49/x
  3. Step 3: Cross multiply
    71,859.62x = 107,742.49 × 34,418.49
  4. Step 4: Simplify right side
    71,859.62x = 3,708,333,324.56
  5. Step 5: Solve for x
    x = 3,708,333,324.56/71,859.62
  6. Step 6: Final answer
    x = 51,605.24

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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.