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Finding the Fourth Proportional to 212.06, 292.46 and 163.04

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Solution

The fourth proportional to 212.06, 292.46 and 163.04 is: 224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.06 : 292.46 = 163.04 : x
  2. Step 2: Convert to fraction form
    212.06/292.46 = 163.04/x
  3. Step 3: Cross multiply
    212.06x = 292.46 × 163.04
  4. Step 4: Simplify right side
    212.06x = 47,682.68
  5. Step 5: Solve for x
    x = 47,682.68/212.06
  6. Step 6: Final answer
    x = 224.85

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