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Finding the Fourth Proportional to 192,011.20, 288,103.20 and 92,132.80

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Solution

The fourth proportional to 192,011.20, 288,103.20 and 92,132.80 is: 138,240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,011.20 : 288,103.20 = 92,132.80 : x
  2. Step 2: Convert to fraction form
    192,011.20/288,103.20 = 92,132.80/x
  3. Step 3: Cross multiply
    192,011.20x = 288,103.20 × 92,132.80
  4. Step 4: Simplify right side
    192,011.20x = 26,543,754,504.96
  5. Step 5: Solve for x
    x = 26,543,754,504.96/192,011.20
  6. Step 6: Final answer
    x = 138,240.66

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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.