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Finding the Fourth Proportional to 368.74, 552.60 and 163.26

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Solution

The fourth proportional to 368.74, 552.60 and 163.26 is: 244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.74 : 552.60 = 163.26 : x
  2. Step 2: Convert to fraction form
    368.74/552.60 = 163.26/x
  3. Step 3: Cross multiply
    368.74x = 552.60 × 163.26
  4. Step 4: Simplify right side
    368.74x = 90,215.46
  5. Step 5: Solve for x
    x = 90,215.46/368.74
  6. Step 6: Final answer
    x = 244.66

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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.