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Finding the Fourth Proportional to 308,974.40, 463,461.60 and 98,619.20

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Solution

The fourth proportional to 308,974.40, 463,461.60 and 98,619.20 is: 147,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,974.40 : 463,461.60 = 98,619.20 : x
  2. Step 2: Convert to fraction form
    308,974.40/463,461.60 = 98,619.20/x
  3. Step 3: Cross multiply
    308,974.40x = 463,461.60 × 98,619.20
  4. Step 4: Simplify right side
    308,974.40x = 45,706,212,222.72
  5. Step 5: Solve for x
    x = 45,706,212,222.72/308,974.40
  6. Step 6: Final answer
    x = 147,928.80

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