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Finding the Fourth Proportional to 206,559.60, 309,839.40 and 192,562.80

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Solution

The fourth proportional to 206,559.60, 309,839.40 and 192,562.80 is: 288,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,559.60 : 309,839.40 = 192,562.80 : x
  2. Step 2: Convert to fraction form
    206,559.60/309,839.40 = 192,562.80/x
  3. Step 3: Cross multiply
    206,559.60x = 309,839.40 × 192,562.80
  4. Step 4: Simplify right side
    206,559.60x = 59,663,542,414.32
  5. Step 5: Solve for x
    x = 59,663,542,414.32/206,559.60
  6. Step 6: Final answer
    x = 288,844.20

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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.