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Finding the Fourth Proportional to 186.44, 278.01 and 160.92

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Solution

The fourth proportional to 186.44, 278.01 and 160.92 is: 239.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.44 : 278.01 = 160.92 : x
  2. Step 2: Convert to fraction form
    186.44/278.01 = 160.92/x
  3. Step 3: Cross multiply
    186.44x = 278.01 × 160.92
  4. Step 4: Simplify right side
    186.44x = 44,736.56
  5. Step 5: Solve for x
    x = 44,736.56/186.44
  6. Step 6: Final answer
    x = 239.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.