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Finding the Fourth Proportional to 193.88, 267.55 and 116.25

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Solution

The fourth proportional to 193.88, 267.55 and 116.25 is: 160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.88 : 267.55 = 116.25 : x
  2. Step 2: Convert to fraction form
    193.88/267.55 = 116.25/x
  3. Step 3: Cross multiply
    193.88x = 267.55 × 116.25
  4. Step 4: Simplify right side
    193.88x = 31,102.40
  5. Step 5: Solve for x
    x = 31,102.40/193.88
  6. Step 6: Final answer
    x = 160.43

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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.