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Finding the Fourth Proportional to 194.68, 268.58 and 124.73

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Solution

The fourth proportional to 194.68, 268.58 and 124.73 is: 172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.68 : 268.58 = 124.73 : x
  2. Step 2: Convert to fraction form
    194.68/268.58 = 124.73/x
  3. Step 3: Cross multiply
    194.68x = 268.58 × 124.73
  4. Step 4: Simplify right side
    194.68x = 33,500.03
  5. Step 5: Solve for x
    x = 33,500.03/194.68
  6. Step 6: Final answer
    x = 172.08

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