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Finding the Fourth Proportional to 264.15, 396.63 and 167.27

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Solution

The fourth proportional to 264.15, 396.63 and 167.27 is: 251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.15 : 396.63 = 167.27 : x
  2. Step 2: Convert to fraction form
    264.15/396.63 = 167.27/x
  3. Step 3: Cross multiply
    264.15x = 396.63 × 167.27
  4. Step 4: Simplify right side
    264.15x = 66,342.32
  5. Step 5: Solve for x
    x = 66,342.32/264.15
  6. Step 6: Final answer
    x = 251.15

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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.