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Finding the Fourth Proportional to 193.91, 267.54 and 110.98

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Solution

The fourth proportional to 193.91, 267.54 and 110.98 is: 153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.91 : 267.54 = 110.98 : x
  2. Step 2: Convert to fraction form
    193.91/267.54 = 110.98/x
  3. Step 3: Cross multiply
    193.91x = 267.54 × 110.98
  4. Step 4: Simplify right side
    193.91x = 29,691.51
  5. Step 5: Solve for x
    x = 29,691.51/193.91
  6. Step 6: Final answer
    x = 153.12

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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.