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Finding the Fourth Proportional to 67,423.97, 101,156.07 and 20,040.63

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Solution

The fourth proportional to 67,423.97, 101,156.07 and 20,040.63 is: 30,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,423.97 : 101,156.07 = 20,040.63 : x
  2. Step 2: Convert to fraction form
    67,423.97/101,156.07 = 20,040.63/x
  3. Step 3: Cross multiply
    67,423.97x = 101,156.07 × 20,040.63
  4. Step 4: Simplify right side
    67,423.97x = 2,027,231,371.12
  5. Step 5: Solve for x
    x = 2,027,231,371.12/67,423.97
  6. Step 6: Final answer
    x = 30,066.92

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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.