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Finding the Fourth Proportional to 49,891.11, 68,849.90 and 29,757.03

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Solution

The fourth proportional to 49,891.11, 68,849.90 and 29,757.03 is: 41,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,891.11 : 68,849.90 = 29,757.03 : x
  2. Step 2: Convert to fraction form
    49,891.11/68,849.90 = 29,757.03/x
  3. Step 3: Cross multiply
    49,891.11x = 68,849.90 × 29,757.03
  4. Step 4: Simplify right side
    49,891.11x = 2,048,768,539.80
  5. Step 5: Solve for x
    x = 2,048,768,539.80/49,891.11
  6. Step 6: Final answer
    x = 41,064.80

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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.