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Finding the Fourth Proportional to 173.96, 261.29 and 167.81

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Solution

The fourth proportional to 173.96, 261.29 and 167.81 is: 252.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.96 : 261.29 = 167.81 : x
  2. Step 2: Convert to fraction form
    173.96/261.29 = 167.81/x
  3. Step 3: Cross multiply
    173.96x = 261.29 × 167.81
  4. Step 4: Simplify right side
    173.96x = 43,847.52
  5. Step 5: Solve for x
    x = 43,847.52/173.96
  6. Step 6: Final answer
    x = 252.05

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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.