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Finding the Fourth Proportional to 186,905.69, 280,260.02 and 81,601.64

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Solution

The fourth proportional to 186,905.69, 280,260.02 and 81,601.64 is: 122,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,905.69 : 280,260.02 = 81,601.64 : x
  2. Step 2: Convert to fraction form
    186,905.69/280,260.02 = 81,601.64/x
  3. Step 3: Cross multiply
    186,905.69x = 280,260.02 × 81,601.64
  4. Step 4: Simplify right side
    186,905.69x = 22,869,677,258.43
  5. Step 5: Solve for x
    x = 22,869,677,258.43/186,905.69
  6. Step 6: Final answer
    x = 122,359.45

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