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Finding the Fourth Proportional to 164.87, 246.92 and 118.73

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Solution

The fourth proportional to 164.87, 246.92 and 118.73 is: 177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.87 : 246.92 = 118.73 : x
  2. Step 2: Convert to fraction form
    164.87/246.92 = 118.73/x
  3. Step 3: Cross multiply
    164.87x = 246.92 × 118.73
  4. Step 4: Simplify right side
    164.87x = 29,316.84
  5. Step 5: Solve for x
    x = 29,316.84/164.87
  6. Step 6: Final answer
    x = 177.82

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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.