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Finding the Fourth Proportional to 254.96, 351.84 and 167.48

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Solution

The fourth proportional to 254.96, 351.84 and 167.48 is: 231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.96 : 351.84 = 167.48 : x
  2. Step 2: Convert to fraction form
    254.96/351.84 = 167.48/x
  3. Step 3: Cross multiply
    254.96x = 351.84 × 167.48
  4. Step 4: Simplify right side
    254.96x = 58,926.16
  5. Step 5: Solve for x
    x = 58,926.16/254.96
  6. Step 6: Final answer
    x = 231.12

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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.