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Finding the Fourth Proportional to 74,489.61, 111,731.68 and 24,568.30

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Solution

The fourth proportional to 74,489.61, 111,731.68 and 24,568.30 is: 36,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,489.61 : 111,731.68 = 24,568.30 : x
  2. Step 2: Convert to fraction form
    74,489.61/111,731.68 = 24,568.30/x
  3. Step 3: Cross multiply
    74,489.61x = 111,731.68 × 24,568.30
  4. Step 4: Simplify right side
    74,489.61x = 2,745,057,433.74
  5. Step 5: Solve for x
    x = 2,745,057,433.74/74,489.61
  6. Step 6: Final answer
    x = 36,851.55

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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.