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Finding the Fourth Proportional to 186.96, 280.70 and 95.73

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Solution

The fourth proportional to 186.96, 280.70 and 95.73 is: 143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.96 : 280.70 = 95.73 : x
  2. Step 2: Convert to fraction form
    186.96/280.70 = 95.73/x
  3. Step 3: Cross multiply
    186.96x = 280.70 × 95.73
  4. Step 4: Simplify right side
    186.96x = 26,871.41
  5. Step 5: Solve for x
    x = 26,871.41/186.96
  6. Step 6: Final answer
    x = 143.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.