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Finding the Fourth Proportional to 160.92, 241.09 and 74.33

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Solution

The fourth proportional to 160.92, 241.09 and 74.33 is: 111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.92 : 241.09 = 74.33 : x
  2. Step 2: Convert to fraction form
    160.92/241.09 = 74.33/x
  3. Step 3: Cross multiply
    160.92x = 241.09 × 74.33
  4. Step 4: Simplify right side
    160.92x = 17,919.73
  5. Step 5: Solve for x
    x = 17,919.73/160.92
  6. Step 6: Final answer
    x = 111.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.