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Finding the Fourth Proportional to 195.28, 292.86 and 67

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Solution

The fourth proportional to 195.28, 292.86 and 67 is: 100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.28 : 292.86 = 67 : x
  2. Step 2: Convert to fraction form
    195.28/292.86 = 67/x
  3. Step 3: Cross multiply
    195.28x = 292.86 × 67
  4. Step 4: Simplify right side
    195.28x = 19,621.62
  5. Step 5: Solve for x
    x = 19,621.62/195.28
  6. Step 6: Final answer
    x = 100.48

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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.