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Finding the Fourth Proportional to 164.68, 246.60 and 137.56

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Solution

The fourth proportional to 164.68, 246.60 and 137.56 is: 205.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.68 : 246.60 = 137.56 : x
  2. Step 2: Convert to fraction form
    164.68/246.60 = 137.56/x
  3. Step 3: Cross multiply
    164.68x = 246.60 × 137.56
  4. Step 4: Simplify right side
    164.68x = 33,922.30
  5. Step 5: Solve for x
    x = 33,922.30/164.68
  6. Step 6: Final answer
    x = 205.99

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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.