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Finding the Fourth Proportional to 164.63, 246.42 and 109.66

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Solution

The fourth proportional to 164.63, 246.42 and 109.66 is: 164.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.63 : 246.42 = 109.66 : x
  2. Step 2: Convert to fraction form
    164.63/246.42 = 109.66/x
  3. Step 3: Cross multiply
    164.63x = 246.42 × 109.66
  4. Step 4: Simplify right side
    164.63x = 27,022.42
  5. Step 5: Solve for x
    x = 27,022.42/164.63
  6. Step 6: Final answer
    x = 164.14

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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.