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Finding the Fourth Proportional to 185.14, 255.53 and 126.94

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Solution

The fourth proportional to 185.14, 255.53 and 126.94 is: 175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.14 : 255.53 = 126.94 : x
  2. Step 2: Convert to fraction form
    185.14/255.53 = 126.94/x
  3. Step 3: Cross multiply
    185.14x = 255.53 × 126.94
  4. Step 4: Simplify right side
    185.14x = 32,436.98
  5. Step 5: Solve for x
    x = 32,436.98/185.14
  6. Step 6: Final answer
    x = 175.20

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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.