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Finding the Fourth Proportional to 168,591.65, 232,689.11 and 108,238.55

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Solution

The fourth proportional to 168,591.65, 232,689.11 and 108,238.55 is: 149,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,591.65 : 232,689.11 = 108,238.55 : x
  2. Step 2: Convert to fraction form
    168,591.65/232,689.11 = 108,238.55/x
  3. Step 3: Cross multiply
    168,591.65x = 232,689.11 × 108,238.55
  4. Step 4: Simplify right side
    168,591.65x = 25,185,930,162.55
  5. Step 5: Solve for x
    x = 25,185,930,162.55/168,591.65
  6. Step 6: Final answer
    x = 149,390.14

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1.5x scale

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.