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Finding the Fourth Proportional to 271, 374.16 and 167.68

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Solution

The fourth proportional to 271, 374.16 and 167.68 is: 231.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    271 : 374.16 = 167.68 : x
  2. Step 2: Convert to fraction form
    271/374.16 = 167.68/x
  3. Step 3: Cross multiply
    271x = 374.16 × 167.68
  4. Step 4: Simplify right side
    271x = 62,739.15
  5. Step 5: Solve for x
    x = 62,739.15/271
  6. Step 6: Final answer
    x = 231.51

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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.