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Finding the Fourth Proportional to 96.36, 144.44 and 42.24

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Solution

The fourth proportional to 96.36, 144.44 and 42.24 is: 63.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.36 : 144.44 = 42.24 : x
  2. Step 2: Convert to fraction form
    96.36/144.44 = 42.24/x
  3. Step 3: Cross multiply
    96.36x = 144.44 × 42.24
  4. Step 4: Simplify right side
    96.36x = 6,101.15
  5. Step 5: Solve for x
    x = 6,101.15/96.36
  6. Step 6: Final answer
    x = 63.32

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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.