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Finding the Fourth Proportional to 96.31, 144.56 and 44.99

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Solution

The fourth proportional to 96.31, 144.56 and 44.99 is: 67.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.31 : 144.56 = 44.99 : x
  2. Step 2: Convert to fraction form
    96.31/144.56 = 44.99/x
  3. Step 3: Cross multiply
    96.31x = 144.56 × 44.99
  4. Step 4: Simplify right side
    96.31x = 6,503.75
  5. Step 5: Solve for x
    x = 6,503.75/96.31
  6. Step 6: Final answer
    x = 67.53

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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.