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Finding the Fourth Proportional to 99,466.92, 137,218.50 and 63,639.72

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Solution

The fourth proportional to 99,466.92, 137,218.50 and 63,639.72 is: 87,793.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,466.92 : 137,218.50 = 63,639.72 : x
  2. Step 2: Convert to fraction form
    99,466.92/137,218.50 = 63,639.72/x
  3. Step 3: Cross multiply
    99,466.92x = 137,218.50 × 63,639.72
  4. Step 4: Simplify right side
    99,466.92x = 8,732,546,918.82
  5. Step 5: Solve for x
    x = 8,732,546,918.82/99,466.92
  6. Step 6: Final answer
    x = 87,793.48

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