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Finding the Fourth Proportional to 99,821.70, 149,732.55 and 92,604.60

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Solution

The fourth proportional to 99,821.70, 149,732.55 and 92,604.60 is: 138,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,821.70 : 149,732.55 = 92,604.60 : x
  2. Step 2: Convert to fraction form
    99,821.70/149,732.55 = 92,604.60/x
  3. Step 3: Cross multiply
    99,821.70x = 149,732.55 × 92,604.60
  4. Step 4: Simplify right side
    99,821.70x = 13,865,922,899.73
  5. Step 5: Solve for x
    x = 13,865,922,899.73/99,821.70
  6. Step 6: Final answer
    x = 138,906.90

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