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Finding the Fourth Proportional to 368.97, 552.96 and 163.29

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Solution

The fourth proportional to 368.97, 552.96 and 163.29 is: 244.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.97 : 552.96 = 163.29 : x
  2. Step 2: Convert to fraction form
    368.97/552.96 = 163.29/x
  3. Step 3: Cross multiply
    368.97x = 552.96 × 163.29
  4. Step 4: Simplify right side
    368.97x = 90,292.84
  5. Step 5: Solve for x
    x = 90,292.84/368.97
  6. Step 6: Final answer
    x = 244.72

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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.