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Finding the Fourth Proportional to 327.98, 492.14 and 122.63

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Solution

The fourth proportional to 327.98, 492.14 and 122.63 is: 184.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.98 : 492.14 = 122.63 : x
  2. Step 2: Convert to fraction form
    327.98/492.14 = 122.63/x
  3. Step 3: Cross multiply
    327.98x = 492.14 × 122.63
  4. Step 4: Simplify right side
    327.98x = 60,348.05
  5. Step 5: Solve for x
    x = 60,348.05/327.98
  6. Step 6: Final answer
    x = 184.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.