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Finding the Fourth Proportional to 67,939.20, 101,937.60 and 32,860.80

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Solution

The fourth proportional to 67,939.20, 101,937.60 and 32,860.80 is: 49,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,939.20 : 101,937.60 = 32,860.80 : x
  2. Step 2: Convert to fraction form
    67,939.20/101,937.60 = 32,860.80/x
  3. Step 3: Cross multiply
    67,939.20x = 101,937.60 × 32,860.80
  4. Step 4: Simplify right side
    67,939.20x = 3,349,751,086.08
  5. Step 5: Solve for x
    x = 3,349,751,086.08/67,939.20
  6. Step 6: Final answer
    x = 49,305.13

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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.