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Finding the Fourth Proportional to 201.28, 279.19 and 193.99

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Solution

The fourth proportional to 201.28, 279.19 and 193.99 is: 269.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.28 : 279.19 = 193.99 : x
  2. Step 2: Convert to fraction form
    201.28/279.19 = 193.99/x
  3. Step 3: Cross multiply
    201.28x = 279.19 × 193.99
  4. Step 4: Simplify right side
    201.28x = 54,160.07
  5. Step 5: Solve for x
    x = 54,160.07/201.28
  6. Step 6: Final answer
    x = 269.08

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.