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Finding the Fourth Proportional to 199.44, 299.16 and 194.04

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Solution

The fourth proportional to 199.44, 299.16 and 194.04 is: 291.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.44 : 299.16 = 194.04 : x
  2. Step 2: Convert to fraction form
    199.44/299.16 = 194.04/x
  3. Step 3: Cross multiply
    199.44x = 299.16 × 194.04
  4. Step 4: Simplify right side
    199.44x = 58,049.01
  5. Step 5: Solve for x
    x = 58,049.01/199.44
  6. Step 6: Final answer
    x = 291.06

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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.