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Finding the Fourth Proportional to 195.94, 293.92 and 51.66

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Solution

The fourth proportional to 195.94, 293.92 and 51.66 is: 77.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.94 : 293.92 = 51.66 : x
  2. Step 2: Convert to fraction form
    195.94/293.92 = 51.66/x
  3. Step 3: Cross multiply
    195.94x = 293.92 × 51.66
  4. Step 4: Simplify right side
    195.94x = 15,182.97
  5. Step 5: Solve for x
    x = 15,182.97/195.94
  6. Step 6: Final answer
    x = 77.49

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Why These Related Problems?

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