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Finding the Fourth Proportional to 118,903.78, 164,087.16 and 65,187.64

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Solution

The fourth proportional to 118,903.78, 164,087.16 and 65,187.64 is: 89,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,903.78 : 164,087.16 = 65,187.64 : x
  2. Step 2: Convert to fraction form
    118,903.78/164,087.16 = 65,187.64/x
  3. Step 3: Cross multiply
    118,903.78x = 164,087.16 × 65,187.64
  4. Step 4: Simplify right side
    118,903.78x = 10,696,454,714.70
  5. Step 5: Solve for x
    x = 10,696,454,714.70/118,903.78
  6. Step 6: Final answer
    x = 89,958.91

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