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Finding the Fourth Proportional to 223, 334.60 and 107.48

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Solution

The fourth proportional to 223, 334.60 and 107.48 is: 161.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223 : 334.60 = 107.48 : x
  2. Step 2: Convert to fraction form
    223/334.60 = 107.48/x
  3. Step 3: Cross multiply
    223x = 334.60 × 107.48
  4. Step 4: Simplify right side
    223x = 35,962.81
  5. Step 5: Solve for x
    x = 35,962.81/223
  6. Step 6: Final answer
    x = 161.27

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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.