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Finding the Fourth Proportional to 259,850.40, 389,775.60 and 112,106.40

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Solution

The fourth proportional to 259,850.40, 389,775.60 and 112,106.40 is: 168,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,850.40 : 389,775.60 = 112,106.40 : x
  2. Step 2: Convert to fraction form
    259,850.40/389,775.60 = 112,106.40/x
  3. Step 3: Cross multiply
    259,850.40x = 389,775.60 × 112,106.40
  4. Step 4: Simplify right side
    259,850.40x = 43,696,339,323.84
  5. Step 5: Solve for x
    x = 43,696,339,323.84/259,850.40
  6. Step 6: Final answer
    x = 168,159.60

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