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Finding the Fourth Proportional to 76,722.53, 115,009.97 and 39,300.22

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Solution

The fourth proportional to 76,722.53, 115,009.97 and 39,300.22 is: 58,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,722.53 : 115,009.97 = 39,300.22 : x
  2. Step 2: Convert to fraction form
    76,722.53/115,009.97 = 39,300.22/x
  3. Step 3: Cross multiply
    76,722.53x = 115,009.97 × 39,300.22
  4. Step 4: Simplify right side
    76,722.53x = 4,519,917,180.99
  5. Step 5: Solve for x
    x = 4,519,917,180.99/76,722.53
  6. Step 6: Final answer
    x = 58,912.52

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