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Finding the Fourth Proportional to 217.67, 326.54 and 96.03

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Solution

The fourth proportional to 217.67, 326.54 and 96.03 is: 144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217.67 : 326.54 = 96.03 : x
  2. Step 2: Convert to fraction form
    217.67/326.54 = 96.03/x
  3. Step 3: Cross multiply
    217.67x = 326.54 × 96.03
  4. Step 4: Simplify right side
    217.67x = 31,357.88
  5. Step 5: Solve for x
    x = 31,357.88/217.67
  6. Step 6: Final answer
    x = 144.06

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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.