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Finding the Fourth Proportional to 192,502.43, 288,559.80 and 80,244.80

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Solution

The fourth proportional to 192,502.43, 288,559.80 and 80,244.80 is: 120,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,502.43 : 288,559.80 = 80,244.80 : x
  2. Step 2: Convert to fraction form
    192,502.43/288,559.80 = 80,244.80/x
  3. Step 3: Cross multiply
    192,502.43x = 288,559.80 × 80,244.80
  4. Step 4: Simplify right side
    192,502.43x = 23,155,423,439.04
  5. Step 5: Solve for x
    x = 23,155,423,439.04/192,502.43
  6. Step 6: Final answer
    x = 120,286.40

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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.