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Finding the Fourth Proportional to 192,793.20, 288,844.20 and 165,145.20

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Solution

The fourth proportional to 192,793.20, 288,844.20 and 165,145.20 is: 247,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,793.20 : 288,844.20 = 165,145.20 : x
  2. Step 2: Convert to fraction form
    192,793.20/288,844.20 = 165,145.20/x
  3. Step 3: Cross multiply
    192,793.20x = 288,844.20 × 165,145.20
  4. Step 4: Simplify right side
    192,793.20x = 47,701,233,177.84
  5. Step 5: Solve for x
    x = 47,701,233,177.84/192,793.20
  6. Step 6: Final answer
    x = 247,421.76

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1.5x scale

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.