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Finding the Fourth Proportional to 217,169.73, 325,672.58 and 104,812.61

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Solution

The fourth proportional to 217,169.73, 325,672.58 and 104,812.61 is: 157,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,169.73 : 325,672.58 = 104,812.61 : x
  2. Step 2: Convert to fraction form
    217,169.73/325,672.58 = 104,812.61/x
  3. Step 3: Cross multiply
    217,169.73x = 325,672.58 × 104,812.61
  4. Step 4: Simplify right side
    217,169.73x = 34,134,591,748.90
  5. Step 5: Solve for x
    x = 34,134,591,748.90/217,169.73
  6. Step 6: Final answer
    x = 157,179.33

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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.