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Finding the Fourth Proportional to 264, 396 and 167.88

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Solution

The fourth proportional to 264, 396 and 167.88 is: 251.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    264 : 396 = 167.88 : x
  2. Step 2: Convert to fraction form
    264/396 = 167.88/x
  3. Step 3: Cross multiply
    264x = 396 × 167.88
  4. Step 4: Simplify right side
    264x = 66,480.48
  5. Step 5: Solve for x
    x = 66,480.48/264
  6. Step 6: Final answer
    x = 251.82

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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.