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Finding the Fourth Proportional to 193.61, 267.16 and 167.49

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Solution

The fourth proportional to 193.61, 267.16 and 167.49 is: 231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.61 : 267.16 = 167.49 : x
  2. Step 2: Convert to fraction form
    193.61/267.16 = 167.49/x
  3. Step 3: Cross multiply
    193.61x = 267.16 × 167.49
  4. Step 4: Simplify right side
    193.61x = 44,746.63
  5. Step 5: Solve for x
    x = 44,746.63/193.61
  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.