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Finding the Fourth Proportional to 67,381.20, 101,042.19 and 25,231.71

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Solution

The fourth proportional to 67,381.20, 101,042.19 and 25,231.71 is: 37,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,381.20 : 101,042.19 = 25,231.71 : x
  2. Step 2: Convert to fraction form
    67,381.20/101,042.19 = 25,231.71/x
  3. Step 3: Cross multiply
    67,381.20x = 101,042.19 × 25,231.71
  4. Step 4: Simplify right side
    67,381.20x = 2,549,467,235.84
  5. Step 5: Solve for x
    x = 2,549,467,235.84/67,381.20
  6. Step 6: Final answer
    x = 37,836.48

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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.