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Finding the Fourth Proportional to 213.53, 294.44 and 164.30

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Solution

The fourth proportional to 213.53, 294.44 and 164.30 is: 226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    213.53 : 294.44 = 164.30 : x
  2. Step 2: Convert to fraction form
    213.53/294.44 = 164.30/x
  3. Step 3: Cross multiply
    213.53x = 294.44 × 164.30
  4. Step 4: Simplify right side
    213.53x = 48,374.20
  5. Step 5: Solve for x
    x = 48,374.20/213.53
  6. Step 6: Final answer
    x = 226.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.