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Finding the Fourth Proportional to 244, 366.17 and 99.72

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Solution

The fourth proportional to 244, 366.17 and 99.72 is: 149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    244 : 366.17 = 99.72 : x
  2. Step 2: Convert to fraction form
    244/366.17 = 99.72/x
  3. Step 3: Cross multiply
    244x = 366.17 × 99.72
  4. Step 4: Simplify right side
    244x = 36,514.47
  5. Step 5: Solve for x
    x = 36,514.47/244
  6. Step 6: Final answer
    x = 149.65

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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.