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Finding the Fourth Proportional to 164.68, 246.96 and 61.96

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Solution

The fourth proportional to 164.68, 246.96 and 61.96 is: 92.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.68 : 246.96 = 61.96 : x
  2. Step 2: Convert to fraction form
    164.68/246.96 = 61.96/x
  3. Step 3: Cross multiply
    164.68x = 246.96 × 61.96
  4. Step 4: Simplify right side
    164.68x = 15,301.64
  5. Step 5: Solve for x
    x = 15,301.64/164.68
  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.