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Finding the Fourth Proportional to 84,818.80, 127,228.20 and 45,355.60

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Solution

The fourth proportional to 84,818.80, 127,228.20 and 45,355.60 is: 68,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,818.80 : 127,228.20 = 45,355.60 : x
  2. Step 2: Convert to fraction form
    84,818.80/127,228.20 = 45,355.60/x
  3. Step 3: Cross multiply
    84,818.80x = 127,228.20 × 45,355.60
  4. Step 4: Simplify right side
    84,818.80x = 5,770,511,347.92
  5. Step 5: Solve for x
    x = 5,770,511,347.92/84,818.80
  6. Step 6: Final answer
    x = 68,033.40

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