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Finding the Fourth Proportional to 195.96, 294.04 and 66

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Solution

The fourth proportional to 195.96, 294.04 and 66 is: 99.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.96 : 294.04 = 66 : x
  2. Step 2: Convert to fraction form
    195.96/294.04 = 66/x
  3. Step 3: Cross multiply
    195.96x = 294.04 × 66
  4. Step 4: Simplify right side
    195.96x = 19,406.64
  5. Step 5: Solve for x
    x = 19,406.64/195.96
  6. Step 6: Final answer
    x = 99.03

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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.