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Finding the Fourth Proportional to 192,532.30, 288,793.05 and 87,351.10

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Solution

The fourth proportional to 192,532.30, 288,793.05 and 87,351.10 is: 131,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,532.30 : 288,793.05 = 87,351.10 : x
  2. Step 2: Convert to fraction form
    192,532.30/288,793.05 = 87,351.10/x
  3. Step 3: Cross multiply
    192,532.30x = 288,793.05 × 87,351.10
  4. Step 4: Simplify right side
    192,532.30x = 25,226,390,589.86
  5. Step 5: Solve for x
    x = 25,226,390,589.86/192,532.30
  6. Step 6: Final answer
    x = 131,024.20

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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.