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Finding the Fourth Proportional to 67,963.20, 101,944.80 and 49,531.20

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Solution

The fourth proportional to 67,963.20, 101,944.80 and 49,531.20 is: 74,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,963.20 : 101,944.80 = 49,531.20 : x
  2. Step 2: Convert to fraction form
    67,963.20/101,944.80 = 49,531.20/x
  3. Step 3: Cross multiply
    67,963.20x = 101,944.80 × 49,531.20
  4. Step 4: Simplify right side
    67,963.20x = 5,049,448,277.76
  5. Step 5: Solve for x
    x = 5,049,448,277.76/67,963.20
  6. Step 6: Final answer
    x = 74,296.80

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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.