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Finding the Fourth Proportional to 193.93, 267.37 and 160.61

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Solution

The fourth proportional to 193.93, 267.37 and 160.61 is: 221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.93 : 267.37 = 160.61 : x
  2. Step 2: Convert to fraction form
    193.93/267.37 = 160.61/x
  3. Step 3: Cross multiply
    193.93x = 267.37 × 160.61
  4. Step 4: Simplify right side
    193.93x = 42,942.41
  5. Step 5: Solve for x
    x = 42,942.41/193.93
  6. Step 6: Final answer
    x = 221.43

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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.