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Finding the Fourth Proportional to 193.44, 291.89 and 185.94

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Solution

The fourth proportional to 193.44, 291.89 and 185.94 is: 280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.44 : 291.89 = 185.94 : x
  2. Step 2: Convert to fraction form
    193.44/291.89 = 185.94/x
  3. Step 3: Cross multiply
    193.44x = 291.89 × 185.94
  4. Step 4: Simplify right side
    193.44x = 54,273.10
  5. Step 5: Solve for x
    x = 54,273.10/193.44
  6. Step 6: Final answer
    x = 280.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.