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Finding the Fourth Proportional to 196.48, 294.36 and 166

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Solution

The fourth proportional to 196.48, 294.36 and 166 is: 248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.48 : 294.36 = 166 : x
  2. Step 2: Convert to fraction form
    196.48/294.36 = 166/x
  3. Step 3: Cross multiply
    196.48x = 294.36 × 166
  4. Step 4: Simplify right side
    196.48x = 48,863.76
  5. Step 5: Solve for x
    x = 48,863.76/196.48
  6. Step 6: Final answer
    x = 248.70

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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.