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Finding the Fourth Proportional to 217,601.56, 325,768.38 and 161,689.60

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Solution

The fourth proportional to 217,601.56, 325,768.38 and 161,689.60 is: 242,063.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,601.56 : 325,768.38 = 161,689.60 : x
  2. Step 2: Convert to fraction form
    217,601.56/325,768.38 = 161,689.60/x
  3. Step 3: Cross multiply
    217,601.56x = 325,768.38 × 161,689.60
  4. Step 4: Simplify right side
    217,601.56x = 52,673,359,054.85
  5. Step 5: Solve for x
    x = 52,673,359,054.85/217,601.56
  6. Step 6: Final answer
    x = 242,063.33

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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.