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Finding the Fourth Proportional to 192,091.68, 288,169.92 and 79,832.16

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Solution

The fourth proportional to 192,091.68, 288,169.92 and 79,832.16 is: 119,761.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,091.68 : 288,169.92 = 79,832.16 : x
  2. Step 2: Convert to fraction form
    192,091.68/288,169.92 = 79,832.16/x
  3. Step 3: Cross multiply
    192,091.68x = 288,169.92 × 79,832.16
  4. Step 4: Simplify right side
    192,091.68x = 23,005,227,160.63
  5. Step 5: Solve for x
    x = 23,005,227,160.63/192,091.68
  6. Step 6: Final answer
    x = 119,761.71

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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.