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Finding the Fourth Proportional to 266.15, 367.34 and 167.94

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Solution

The fourth proportional to 266.15, 367.34 and 167.94 is: 231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.15 : 367.34 = 167.94 : x
  2. Step 2: Convert to fraction form
    266.15/367.34 = 167.94/x
  3. Step 3: Cross multiply
    266.15x = 367.34 × 167.94
  4. Step 4: Simplify right side
    266.15x = 61,690.24
  5. Step 5: Solve for x
    x = 61,690.24/266.15
  6. Step 6: Final answer
    x = 231.79

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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.