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Finding the Fourth Proportional to 94.24, 141.42 and 53.74

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Solution

The fourth proportional to 94.24, 141.42 and 53.74 is: 80.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.24 : 141.42 = 53.74 : x
  2. Step 2: Convert to fraction form
    94.24/141.42 = 53.74/x
  3. Step 3: Cross multiply
    94.24x = 141.42 × 53.74
  4. Step 4: Simplify right side
    94.24x = 7,599.91
  5. Step 5: Solve for x
    x = 7,599.91/94.24
  6. Step 6: Final answer
    x = 80.64

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