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Finding the Fourth Proportional to 67,244.56, 100,883.04 and 20,494.56

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Solution

The fourth proportional to 67,244.56, 100,883.04 and 20,494.56 is: 30,746.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,244.56 : 100,883.04 = 20,494.56 : x
  2. Step 2: Convert to fraction form
    67,244.56/100,883.04 = 20,494.56/x
  3. Step 3: Cross multiply
    67,244.56x = 100,883.04 × 20,494.56
  4. Step 4: Simplify right side
    67,244.56x = 2,067,553,516.26
  5. Step 5: Solve for x
    x = 2,067,553,516.26/67,244.56
  6. Step 6: Final answer
    x = 30,746.78

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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.