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Finding the Fourth Proportional to 217,310.33, 325,902.31 and 84,160.91

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Solution

The fourth proportional to 217,310.33, 325,902.31 and 84,160.91 is: 126,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,310.33 : 325,902.31 = 84,160.91 : x
  2. Step 2: Convert to fraction form
    217,310.33/325,902.31 = 84,160.91/x
  3. Step 3: Cross multiply
    217,310.33x = 325,902.31 × 84,160.91
  4. Step 4: Simplify right side
    217,310.33x = 27,428,235,585.06
  5. Step 5: Solve for x
    x = 27,428,235,585.06/217,310.33
  6. Step 6: Final answer
    x = 126,216.90

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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.