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Finding the Fourth Proportional to 192,226.72, 288,154.88 and 129,064.12

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Solution

The fourth proportional to 192,226.72, 288,154.88 and 129,064.12 is: 193,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,226.72 : 288,154.88 = 129,064.12 : x
  2. Step 2: Convert to fraction form
    192,226.72/288,154.88 = 129,064.12/x
  3. Step 3: Cross multiply
    192,226.72x = 288,154.88 × 129,064.12
  4. Step 4: Simplify right side
    192,226.72x = 37,190,456,010.91
  5. Step 5: Solve for x
    x = 37,190,456,010.91/192,226.72
  6. Step 6: Final answer
    x = 193,471.83

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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.