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Finding the Fourth Proportional to 80,794.82, 121,797.25 and 75,375.83

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Solution

The fourth proportional to 80,794.82, 121,797.25 and 75,375.83 is: 113,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,794.82 : 121,797.25 = 75,375.83 : x
  2. Step 2: Convert to fraction form
    80,794.82/121,797.25 = 75,375.83/x
  3. Step 3: Cross multiply
    80,794.82x = 121,797.25 × 75,375.83
  4. Step 4: Simplify right side
    80,794.82x = 9,180,568,926.52
  5. Step 5: Solve for x
    x = 9,180,568,926.52/80,794.82
  6. Step 6: Final answer
    x = 113,628.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.