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Finding the Fourth Proportional to 276,853.60, 415,021.20 and 216,848.80

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Solution

The fourth proportional to 276,853.60, 415,021.20 and 216,848.80 is: 325,070.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,853.60 : 415,021.20 = 216,848.80 : x
  2. Step 2: Convert to fraction form
    276,853.60/415,021.20 = 216,848.80/x
  3. Step 3: Cross multiply
    276,853.60x = 415,021.20 × 216,848.80
  4. Step 4: Simplify right side
    276,853.60x = 89,996,849,194.56
  5. Step 5: Solve for x
    x = 89,996,849,194.56/276,853.60
  6. Step 6: Final answer
    x = 325,070.18

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