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Finding the Fourth Proportional to 222.46, 306.93 and 164.26

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Solution

The fourth proportional to 222.46, 306.93 and 164.26 is: 226.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.46 : 306.93 = 164.26 : x
  2. Step 2: Convert to fraction form
    222.46/306.93 = 164.26/x
  3. Step 3: Cross multiply
    222.46x = 306.93 × 164.26
  4. Step 4: Simplify right side
    222.46x = 50,416.32
  5. Step 5: Solve for x
    x = 50,416.32/222.46
  6. Step 6: Final answer
    x = 226.63

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Why These Related Problems?

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