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Finding the Fourth Proportional to 193.34, 267.09 and 167.42

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Solution

The fourth proportional to 193.34, 267.09 and 167.42 is: 231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.34 : 267.09 = 167.42 : x
  2. Step 2: Convert to fraction form
    193.34/267.09 = 167.42/x
  3. Step 3: Cross multiply
    193.34x = 267.09 × 167.42
  4. Step 4: Simplify right side
    193.34x = 44,716.21
  5. Step 5: Solve for x
    x = 44,716.21/193.34
  6. Step 6: Final answer
    x = 231.28

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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.