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Finding the Fourth Proportional to 144.44, 216.64 and 63.26

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Solution

The fourth proportional to 144.44, 216.64 and 63.26 is: 94.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.44 : 216.64 = 63.26 : x
  2. Step 2: Convert to fraction form
    144.44/216.64 = 63.26/x
  3. Step 3: Cross multiply
    144.44x = 216.64 × 63.26
  4. Step 4: Simplify right side
    144.44x = 13,704.65
  5. Step 5: Solve for x
    x = 13,704.65/144.44
  6. Step 6: Final answer
    x = 94.88

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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.