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Finding the Fourth Proportional to 196.80, 294.48 and 166.02

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Solution

The fourth proportional to 196.80, 294.48 and 166.02 is: 248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.80 : 294.48 = 166.02 : x
  2. Step 2: Convert to fraction form
    196.80/294.48 = 166.02/x
  3. Step 3: Cross multiply
    196.80x = 294.48 × 166.02
  4. Step 4: Simplify right side
    196.80x = 48,889.57
  5. Step 5: Solve for x
    x = 48,889.57/196.80
  6. Step 6: Final answer
    x = 248.42

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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.