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Finding the Fourth Proportional to 123,758.29, 170,786.61 and 67,169.67

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Solution

The fourth proportional to 123,758.29, 170,786.61 and 67,169.67 is: 92,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,758.29 : 170,786.61 = 67,169.67 : x
  2. Step 2: Convert to fraction form
    123,758.29/170,786.61 = 67,169.67/x
  3. Step 3: Cross multiply
    123,758.29x = 170,786.61 × 67,169.67
  4. Step 4: Simplify right side
    123,758.29x = 11,471,680,234.12
  5. Step 5: Solve for x
    x = 11,471,680,234.12/123,758.29
  6. Step 6: Final answer
    x = 92,694.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.