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Finding the Fourth Proportional to 99.24, 149.16 and 94.44

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Solution

The fourth proportional to 99.24, 149.16 and 94.44 is: 141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.24 : 149.16 = 94.44 : x
  2. Step 2: Convert to fraction form
    99.24/149.16 = 94.44/x
  3. Step 3: Cross multiply
    99.24x = 149.16 × 94.44
  4. Step 4: Simplify right side
    99.24x = 14,086.67
  5. Step 5: Solve for x
    x = 14,086.67/99.24
  6. Step 6: Final answer
    x = 141.95

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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.