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Finding the Fourth Proportional to 106,716.80, 160,083.30 and 31,831.08

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Solution

The fourth proportional to 106,716.80, 160,083.30 and 31,831.08 is: 47,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,716.80 : 160,083.30 = 31,831.08 : x
  2. Step 2: Convert to fraction form
    106,716.80/160,083.30 = 31,831.08/x
  3. Step 3: Cross multiply
    106,716.80x = 160,083.30 × 31,831.08
  4. Step 4: Simplify right side
    106,716.80x = 5,095,624,328.96
  5. Step 5: Solve for x
    x = 5,095,624,328.96/106,716.80
  6. Step 6: Final answer
    x = 47,749.04

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