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Finding the Fourth Proportional to 249.88, 375 and 113.08

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Solution

The fourth proportional to 249.88, 375 and 113.08 is: 169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.88 : 375 = 113.08 : x
  2. Step 2: Convert to fraction form
    249.88/375 = 113.08/x
  3. Step 3: Cross multiply
    249.88x = 375 × 113.08
  4. Step 4: Simplify right side
    249.88x = 42,405
  5. Step 5: Solve for x
    x = 42,405/249.88
  6. Step 6: Final answer
    x = 169.70

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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.