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Finding the Fourth Proportional to 84,896.10, 127,327.68 and 80,681.40

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Solution

The fourth proportional to 84,896.10, 127,327.68 and 80,681.40 is: 121,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,896.10 : 127,327.68 = 80,681.40 : x
  2. Step 2: Convert to fraction form
    84,896.10/127,327.68 = 80,681.40/x
  3. Step 3: Cross multiply
    84,896.10x = 127,327.68 × 80,681.40
  4. Step 4: Simplify right side
    84,896.10x = 10,272,975,481.15
  5. Step 5: Solve for x
    x = 10,272,975,481.15/84,896.10
  6. Step 6: Final answer
    x = 121,006.45

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