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Finding the Fourth Proportional to 140,249.16, 193,560.48 and 79,834.32

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Solution

The fourth proportional to 140,249.16, 193,560.48 and 79,834.32 is: 110,180.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,249.16 : 193,560.48 = 79,834.32 : x
  2. Step 2: Convert to fraction form
    140,249.16/193,560.48 = 79,834.32/x
  3. Step 3: Cross multiply
    140,249.16x = 193,560.48 × 79,834.32
  4. Step 4: Simplify right side
    140,249.16x = 15,452,769,299.67
  5. Step 5: Solve for x
    x = 15,452,769,299.67/140,249.16
  6. Step 6: Final answer
    x = 110,180.83

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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.