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Finding the Fourth Proportional to 104,688.06, 156,972.41 and 71,448.36

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Solution

The fourth proportional to 104,688.06, 156,972.41 and 71,448.36 is: 107,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,688.06 : 156,972.41 = 71,448.36 : x
  2. Step 2: Convert to fraction form
    104,688.06/156,972.41 = 71,448.36/x
  3. Step 3: Cross multiply
    104,688.06x = 156,972.41 × 71,448.36
  4. Step 4: Simplify right side
    104,688.06x = 11,215,421,259.75
  5. Step 5: Solve for x
    x = 11,215,421,259.75/104,688.06
  6. Step 6: Final answer
    x = 107,131.81

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