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Finding the Fourth Proportional to 96.37, 144.65 and 69.44

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Solution

The fourth proportional to 96.37, 144.65 and 69.44 is: 104.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.37 : 144.65 = 69.44 : x
  2. Step 2: Convert to fraction form
    96.37/144.65 = 69.44/x
  3. Step 3: Cross multiply
    96.37x = 144.65 × 69.44
  4. Step 4: Simplify right side
    96.37x = 10,043.43
  5. Step 5: Solve for x
    x = 10,043.43/96.37
  6. Step 6: Final answer
    x = 104.22

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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.