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Finding the Fourth Proportional to 217,600.56, 325,766.88 and 161,688.60

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Solution

The fourth proportional to 217,600.56, 325,766.88 and 161,688.60 is: 242,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,600.56 : 325,766.88 = 161,688.60 : x
  2. Step 2: Convert to fraction form
    217,600.56/325,766.88 = 161,688.60/x
  3. Step 3: Cross multiply
    217,600.56x = 325,766.88 × 161,688.60
  4. Step 4: Simplify right side
    217,600.56x = 52,672,790,753.57
  5. Step 5: Solve for x
    x = 52,672,790,753.57/217,600.56
  6. Step 6: Final answer
    x = 242,061.83

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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.