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Finding the Fourth Proportional to 74,251.78, 111,351.75 and 29,867.02

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Solution

The fourth proportional to 74,251.78, 111,351.75 and 29,867.02 is: 44,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,251.78 : 111,351.75 = 29,867.02 : x
  2. Step 2: Convert to fraction form
    74,251.78/111,351.75 = 29,867.02/x
  3. Step 3: Cross multiply
    74,251.78x = 111,351.75 × 29,867.02
  4. Step 4: Simplify right side
    74,251.78x = 3,325,744,553.90
  5. Step 5: Solve for x
    x = 3,325,744,553.90/74,251.78
  6. Step 6: Final answer
    x = 44,790.10

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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.