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Finding the Fourth Proportional to 249.95, 344.72 and 176.24

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Solution

The fourth proportional to 249.95, 344.72 and 176.24 is: 243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.95 : 344.72 = 176.24 : x
  2. Step 2: Convert to fraction form
    249.95/344.72 = 176.24/x
  3. Step 3: Cross multiply
    249.95x = 344.72 × 176.24
  4. Step 4: Simplify right side
    249.95x = 60,754.76
  5. Step 5: Solve for x
    x = 60,754.76/249.95
  6. Step 6: Final answer
    x = 243.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.