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Finding the Fourth Proportional to 100.05, 149.98 and 35.88

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Solution

The fourth proportional to 100.05, 149.98 and 35.88 is: 53.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.05 : 149.98 = 35.88 : x
  2. Step 2: Convert to fraction form
    100.05/149.98 = 35.88/x
  3. Step 3: Cross multiply
    100.05x = 149.98 × 35.88
  4. Step 4: Simplify right side
    100.05x = 5,380.44
  5. Step 5: Solve for x
    x = 5,380.44/100.05
  6. Step 6: Final answer
    x = 53.78

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