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Finding the Fourth Proportional to 163,628.80, 245,443.20 and 84,767.20

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Solution

The fourth proportional to 163,628.80, 245,443.20 and 84,767.20 is: 127,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,628.80 : 245,443.20 = 84,767.20 : x
  2. Step 2: Convert to fraction form
    163,628.80/245,443.20 = 84,767.20/x
  3. Step 3: Cross multiply
    163,628.80x = 245,443.20 × 84,767.20
  4. Step 4: Simplify right side
    163,628.80x = 20,805,532,823.04
  5. Step 5: Solve for x
    x = 20,805,532,823.04/163,628.80
  6. Step 6: Final answer
    x = 127,150.80

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