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Finding the Fourth Proportional to 267.87, 401.37 and 164.94

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Solution

The fourth proportional to 267.87, 401.37 and 164.94 is: 247.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.87 : 401.37 = 164.94 : x
  2. Step 2: Convert to fraction form
    267.87/401.37 = 164.94/x
  3. Step 3: Cross multiply
    267.87x = 401.37 × 164.94
  4. Step 4: Simplify right side
    267.87x = 66,201.97
  5. Step 5: Solve for x
    x = 66,201.97/267.87
  6. Step 6: Final answer
    x = 247.14

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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.