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Finding the Fourth Proportional to 198.22, 297.18 and 94.06

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Solution

The fourth proportional to 198.22, 297.18 and 94.06 is: 141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.22 : 297.18 = 94.06 : x
  2. Step 2: Convert to fraction form
    198.22/297.18 = 94.06/x
  3. Step 3: Cross multiply
    198.22x = 297.18 × 94.06
  4. Step 4: Simplify right side
    198.22x = 27,952.75
  5. Step 5: Solve for x
    x = 27,952.75/198.22
  6. Step 6: Final answer
    x = 141.02

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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.