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Finding the Fourth Proportional to 96.18, 144.32 and 44.84

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Solution

The fourth proportional to 96.18, 144.32 and 44.84 is: 67.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.18 : 144.32 = 44.84 : x
  2. Step 2: Convert to fraction form
    96.18/144.32 = 44.84/x
  3. Step 3: Cross multiply
    96.18x = 144.32 × 44.84
  4. Step 4: Simplify right side
    96.18x = 6,470.36
  5. Step 5: Solve for x
    x = 6,470.36/96.18
  6. Step 6: Final answer
    x = 67.27

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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.