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Finding the Fourth Proportional to 317,076.80, 475,636.80 and 100,918.40

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Solution

The fourth proportional to 317,076.80, 475,636.80 and 100,918.40 is: 151,384.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,076.80 : 475,636.80 = 100,918.40 : x
  2. Step 2: Convert to fraction form
    317,076.80/475,636.80 = 100,918.40/x
  3. Step 3: Cross multiply
    317,076.80x = 475,636.80 × 100,918.40
  4. Step 4: Simplify right side
    317,076.80x = 48,000,504,837.12
  5. Step 5: Solve for x
    x = 48,000,504,837.12/317,076.80
  6. Step 6: Final answer
    x = 151,384.47

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