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Finding the Fourth Proportional to 67,403.49, 101,107.68 and 25,279.30

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Solution

The fourth proportional to 67,403.49, 101,107.68 and 25,279.30 is: 37,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,403.49 : 101,107.68 = 25,279.30 : x
  2. Step 2: Convert to fraction form
    67,403.49/101,107.68 = 25,279.30/x
  3. Step 3: Cross multiply
    67,403.49x = 101,107.68 × 25,279.30
  4. Step 4: Simplify right side
    67,403.49x = 2,555,931,375.02
  5. Step 5: Solve for x
    x = 2,555,931,375.02/67,403.49
  6. Step 6: Final answer
    x = 37,919.87

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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.