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Finding the Fourth Proportional to 282,652.80, 423,979.20 and 72,279.60

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Solution

The fourth proportional to 282,652.80, 423,979.20 and 72,279.60 is: 108,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,652.80 : 423,979.20 = 72,279.60 : x
  2. Step 2: Convert to fraction form
    282,652.80/423,979.20 = 72,279.60/x
  3. Step 3: Cross multiply
    282,652.80x = 423,979.20 × 72,279.60
  4. Step 4: Simplify right side
    282,652.80x = 30,645,046,984.32
  5. Step 5: Solve for x
    x = 30,645,046,984.32/282,652.80
  6. Step 6: Final answer
    x = 108,419.40

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