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Finding the Fourth Proportional to 281,275.59, 421,859.62 and 84,283.59

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Solution

The fourth proportional to 281,275.59, 421,859.62 and 84,283.59 is: 126,409.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,275.59 : 421,859.62 = 84,283.59 : x
  2. Step 2: Convert to fraction form
    281,275.59/421,859.62 = 84,283.59/x
  3. Step 3: Cross multiply
    281,275.59x = 421,859.62 × 84,283.59
  4. Step 4: Simplify right side
    281,275.59x = 35,555,840,929.63
  5. Step 5: Solve for x
    x = 35,555,840,929.63/281,275.59
  6. Step 6: Final answer
    x = 126,409.27

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