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Finding the Fourth Proportional to 329.96, 495.06 and 113.55

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Solution

The fourth proportional to 329.96, 495.06 and 113.55 is: 170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.96 : 495.06 = 113.55 : x
  2. Step 2: Convert to fraction form
    329.96/495.06 = 113.55/x
  3. Step 3: Cross multiply
    329.96x = 495.06 × 113.55
  4. Step 4: Simplify right side
    329.96x = 56,213.50
  5. Step 5: Solve for x
    x = 56,213.50/329.96
  6. Step 6: Final answer
    x = 170.37

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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.