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Finding the Fourth Proportional to 222.12, 332.60 and 196.17

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Solution

The fourth proportional to 222.12, 332.60 and 196.17 is: 293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.12 : 332.60 = 196.17 : x
  2. Step 2: Convert to fraction form
    222.12/332.60 = 196.17/x
  3. Step 3: Cross multiply
    222.12x = 332.60 × 196.17
  4. Step 4: Simplify right side
    222.12x = 65,246.14
  5. Step 5: Solve for x
    x = 65,246.14/222.12
  6. Step 6: Final answer
    x = 293.74

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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.