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Finding the Fourth Proportional to 194.22, 268.04 and 124.25

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Solution

The fourth proportional to 194.22, 268.04 and 124.25 is: 171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.22 : 268.04 = 124.25 : x
  2. Step 2: Convert to fraction form
    194.22/268.04 = 124.25/x
  3. Step 3: Cross multiply
    194.22x = 268.04 × 124.25
  4. Step 4: Simplify right side
    194.22x = 33,303.97
  5. Step 5: Solve for x
    x = 33,303.97/194.22
  6. Step 6: Final answer
    x = 171.48

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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.