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Finding the Fourth Proportional to 73,104.60, 109,656.90 and 67,344.60

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Solution

The fourth proportional to 73,104.60, 109,656.90 and 67,344.60 is: 101,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,104.60 : 109,656.90 = 67,344.60 : x
  2. Step 2: Convert to fraction form
    73,104.60/109,656.90 = 67,344.60/x
  3. Step 3: Cross multiply
    73,104.60x = 109,656.90 × 67,344.60
  4. Step 4: Simplify right side
    73,104.60x = 7,384,800,067.74
  5. Step 5: Solve for x
    x = 7,384,800,067.74/73,104.60
  6. Step 6: Final answer
    x = 101,016.90

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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.