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Finding the Fourth Proportional to 164.13, 246.24 and 82.92

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Solution

The fourth proportional to 164.13, 246.24 and 82.92 is: 124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.13 : 246.24 = 82.92 : x
  2. Step 2: Convert to fraction form
    164.13/246.24 = 82.92/x
  3. Step 3: Cross multiply
    164.13x = 246.24 × 82.92
  4. Step 4: Simplify right side
    164.13x = 20,419.14
  5. Step 5: Solve for x
    x = 20,419.14/164.13
  6. Step 6: Final answer
    x = 124.41

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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.