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Finding the Fourth Proportional to 73,744.78, 110,617.53 and 18,340.78

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Solution

The fourth proportional to 73,744.78, 110,617.53 and 18,340.78 is: 27,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,744.78 : 110,617.53 = 18,340.78 : x
  2. Step 2: Convert to fraction form
    73,744.78/110,617.53 = 18,340.78/x
  3. Step 3: Cross multiply
    73,744.78x = 110,617.53 × 18,340.78
  4. Step 4: Simplify right side
    73,744.78x = 2,028,811,781.87
  5. Step 5: Solve for x
    x = 2,028,811,781.87/73,744.78
  6. Step 6: Final answer
    x = 27,511.26

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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.