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Finding the Fourth Proportional to 73,979.40, 110,951.10 and 21,383.40

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Solution

The fourth proportional to 73,979.40, 110,951.10 and 21,383.40 is: 32,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,979.40 : 110,951.10 = 21,383.40 : x
  2. Step 2: Convert to fraction form
    73,979.40/110,951.10 = 21,383.40/x
  3. Step 3: Cross multiply
    73,979.40x = 110,951.10 × 21,383.40
  4. Step 4: Simplify right side
    73,979.40x = 2,372,511,751.74
  5. Step 5: Solve for x
    x = 2,372,511,751.74/73,979.40
  6. Step 6: Final answer
    x = 32,069.90

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