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Finding the Fourth Proportional to 124,571.40, 171,856.20 and 86,867.52

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Solution

The fourth proportional to 124,571.40, 171,856.20 and 86,867.52 is: 119,840.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,571.40 : 171,856.20 = 86,867.52 : x
  2. Step 2: Convert to fraction form
    124,571.40/171,856.20 = 86,867.52/x
  3. Step 3: Cross multiply
    124,571.40x = 171,856.20 × 86,867.52
  4. Step 4: Simplify right side
    124,571.40x = 14,928,721,890.62
  5. Step 5: Solve for x
    x = 14,928,721,890.62/124,571.40
  6. Step 6: Final answer
    x = 119,840.68

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