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Finding the Fourth Proportional to 118.25, 177 and 96.48

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Solution

The fourth proportional to 118.25, 177 and 96.48 is: 144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.25 : 177 = 96.48 : x
  2. Step 2: Convert to fraction form
    118.25/177 = 96.48/x
  3. Step 3: Cross multiply
    118.25x = 177 × 96.48
  4. Step 4: Simplify right side
    118.25x = 17,076.96
  5. Step 5: Solve for x
    x = 17,076.96/118.25
  6. Step 6: Final answer
    x = 144.41

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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.