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Finding the Fourth Proportional to 249.69, 374.54 and 134.23

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Solution

The fourth proportional to 249.69, 374.54 and 134.23 is: 201.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.69 : 374.54 = 134.23 : x
  2. Step 2: Convert to fraction form
    249.69/374.54 = 134.23/x
  3. Step 3: Cross multiply
    249.69x = 374.54 × 134.23
  4. Step 4: Simplify right side
    249.69x = 50,274.50
  5. Step 5: Solve for x
    x = 50,274.50/249.69
  6. Step 6: Final answer
    x = 201.35

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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.