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Finding the Fourth Proportional to 140,494.25, 193,882.25 and 79,241.24

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Solution

The fourth proportional to 140,494.25, 193,882.25 and 79,241.24 is: 109,353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,494.25 : 193,882.25 = 79,241.24 : x
  2. Step 2: Convert to fraction form
    140,494.25/193,882.25 = 79,241.24/x
  3. Step 3: Cross multiply
    140,494.25x = 193,882.25 × 79,241.24
  4. Step 4: Simplify right side
    140,494.25x = 15,363,469,132.68
  5. Step 5: Solve for x
    x = 15,363,469,132.68/140,494.25
  6. Step 6: Final answer
    x = 109,353.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.