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Finding the Fourth Proportional to 83,860.92, 115,683.48 and 63,684.36

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Solution

The fourth proportional to 83,860.92, 115,683.48 and 63,684.36 is: 87,850.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,860.92 : 115,683.48 = 63,684.36 : x
  2. Step 2: Convert to fraction form
    83,860.92/115,683.48 = 63,684.36/x
  3. Step 3: Cross multiply
    83,860.92x = 115,683.48 × 63,684.36
  4. Step 4: Simplify right side
    83,860.92x = 7,367,228,386.37
  5. Step 5: Solve for x
    x = 7,367,228,386.37/83,860.92
  6. Step 6: Final answer
    x = 87,850.56

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