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Finding the Fourth Proportional to 164.73, 247.11 and 61.94

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Solution

The fourth proportional to 164.73, 247.11 and 61.94 is: 92.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.73 : 247.11 = 61.94 : x
  2. Step 2: Convert to fraction form
    164.73/247.11 = 61.94/x
  3. Step 3: Cross multiply
    164.73x = 247.11 × 61.94
  4. Step 4: Simplify right side
    164.73x = 15,306.38
  5. Step 5: Solve for x
    x = 15,306.38/164.73
  6. Step 6: Final answer
    x = 92.92

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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.