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Finding the Fourth Proportional to 149.44, 224.16 and 63.94

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Solution

The fourth proportional to 149.44, 224.16 and 63.94 is: 95.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.44 : 224.16 = 63.94 : x
  2. Step 2: Convert to fraction form
    149.44/224.16 = 63.94/x
  3. Step 3: Cross multiply
    149.44x = 224.16 × 63.94
  4. Step 4: Simplify right side
    149.44x = 14,332.47
  5. Step 5: Solve for x
    x = 14,332.47/149.44
  6. Step 6: Final answer
    x = 95.91

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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.