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Finding the Fourth Proportional to 185.46, 256.02 and 160.83

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Solution

The fourth proportional to 185.46, 256.02 and 160.83 is: 222.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.46 : 256.02 = 160.83 : x
  2. Step 2: Convert to fraction form
    185.46/256.02 = 160.83/x
  3. Step 3: Cross multiply
    185.46x = 256.02 × 160.83
  4. Step 4: Simplify right side
    185.46x = 41,175.70
  5. Step 5: Solve for x
    x = 41,175.70/185.46
  6. Step 6: Final answer
    x = 222.02

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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.