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Finding the Fourth Proportional to 164.62, 246.94 and 68.44

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Solution

The fourth proportional to 164.62, 246.94 and 68.44 is: 102.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.62 : 246.94 = 68.44 : x
  2. Step 2: Convert to fraction form
    164.62/246.94 = 68.44/x
  3. Step 3: Cross multiply
    164.62x = 246.94 × 68.44
  4. Step 4: Simplify right side
    164.62x = 16,900.57
  5. Step 5: Solve for x
    x = 16,900.57/164.62
  6. Step 6: Final answer
    x = 102.66

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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.