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Finding the Fourth Proportional to 166.44, 249.08 and 164

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Solution

The fourth proportional to 166.44, 249.08 and 164 is: 245.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.44 : 249.08 = 164 : x
  2. Step 2: Convert to fraction form
    166.44/249.08 = 164/x
  3. Step 3: Cross multiply
    166.44x = 249.08 × 164
  4. Step 4: Simplify right side
    166.44x = 40,849.12
  5. Step 5: Solve for x
    x = 40,849.12/166.44
  6. Step 6: Final answer
    x = 245.43

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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.