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Finding the Fourth Proportional to 267, 368.28 and 168.66

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Solution

The fourth proportional to 267, 368.28 and 168.66 is: 232.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    267 : 368.28 = 168.66 : x
  2. Step 2: Convert to fraction form
    267/368.28 = 168.66/x
  3. Step 3: Cross multiply
    267x = 368.28 × 168.66
  4. Step 4: Simplify right side
    267x = 62,114.10
  5. Step 5: Solve for x
    x = 62,114.10/267
  6. Step 6: Final answer
    x = 232.64

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Why These Related Problems?

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