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Finding the Fourth Proportional to 160.97, 241.46 and 64.79

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Solution

The fourth proportional to 160.97, 241.46 and 64.79 is: 97.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.97 : 241.46 = 64.79 : x
  2. Step 2: Convert to fraction form
    160.97/241.46 = 64.79/x
  3. Step 3: Cross multiply
    160.97x = 241.46 × 64.79
  4. Step 4: Simplify right side
    160.97x = 15,642.66
  5. Step 5: Solve for x
    x = 15,642.66/160.97
  6. Step 6: Final answer
    x = 97.18

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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.