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Finding the Fourth Proportional to 67,042.97, 100,599.30 and 27,071.78

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Solution

The fourth proportional to 67,042.97, 100,599.30 and 27,071.78 is: 40,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,042.97 : 100,599.30 = 27,071.78 : x
  2. Step 2: Convert to fraction form
    67,042.97/100,599.30 = 27,071.78/x
  3. Step 3: Cross multiply
    67,042.97x = 100,599.30 × 27,071.78
  4. Step 4: Simplify right side
    67,042.97x = 2,723,401,614.76
  5. Step 5: Solve for x
    x = 2,723,401,614.76/67,042.97
  6. Step 6: Final answer
    x = 40,621.74

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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.