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Finding the Fourth Proportional to 232.71, 321.21 and 144.24

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Solution

The fourth proportional to 232.71, 321.21 and 144.24 is: 199.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.71 : 321.21 = 144.24 : x
  2. Step 2: Convert to fraction form
    232.71/321.21 = 144.24/x
  3. Step 3: Cross multiply
    232.71x = 321.21 × 144.24
  4. Step 4: Simplify right side
    232.71x = 46,331.33
  5. Step 5: Solve for x
    x = 46,331.33/232.71
  6. Step 6: Final answer
    x = 199.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.