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Finding the Fourth Proportional to 264.75, 396.92 and 82.04

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Solution

The fourth proportional to 264.75, 396.92 and 82.04 is: 122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.75 : 396.92 = 82.04 : x
  2. Step 2: Convert to fraction form
    264.75/396.92 = 82.04/x
  3. Step 3: Cross multiply
    264.75x = 396.92 × 82.04
  4. Step 4: Simplify right side
    264.75x = 32,561.54
  5. Step 5: Solve for x
    x = 32,561.54/264.75
  6. Step 6: Final answer
    x = 122.99

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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.