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Finding the Fourth Proportional to 249.12, 373.56 and 95

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Solution

The fourth proportional to 249.12, 373.56 and 95 is: 142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.12 : 373.56 = 95 : x
  2. Step 2: Convert to fraction form
    249.12/373.56 = 95/x
  3. Step 3: Cross multiply
    249.12x = 373.56 × 95
  4. Step 4: Simplify right side
    249.12x = 35,488.20
  5. Step 5: Solve for x
    x = 35,488.20/249.12
  6. Step 6: Final answer
    x = 142.45

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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.