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Finding the Fourth Proportional to 164.18, 246.33 and 92.09

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Solution

The fourth proportional to 164.18, 246.33 and 92.09 is: 138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.18 : 246.33 = 92.09 : x
  2. Step 2: Convert to fraction form
    164.18/246.33 = 92.09/x
  3. Step 3: Cross multiply
    164.18x = 246.33 × 92.09
  4. Step 4: Simplify right side
    164.18x = 22,684.53
  5. Step 5: Solve for x
    x = 22,684.53/164.18
  6. Step 6: Final answer
    x = 138.17

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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.