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Finding the Fourth Proportional to 79,402.73, 109,502.63 and 53,947.20

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Solution

The fourth proportional to 79,402.73, 109,502.63 and 53,947.20 is: 74,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,402.73 : 109,502.63 = 53,947.20 : x
  2. Step 2: Convert to fraction form
    79,402.73/109,502.63 = 53,947.20/x
  3. Step 3: Cross multiply
    79,402.73x = 109,502.63 × 53,947.20
  4. Step 4: Simplify right side
    79,402.73x = 5,907,360,011.40
  5. Step 5: Solve for x
    x = 5,907,360,011.40/79,402.73
  6. Step 6: Final answer
    x = 74,397.45

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