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Finding the Fourth Proportional to 298,643.28, 447,809.40 and 88,252.80

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Solution

The fourth proportional to 298,643.28, 447,809.40 and 88,252.80 is: 132,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,643.28 : 447,809.40 = 88,252.80 : x
  2. Step 2: Convert to fraction form
    298,643.28/447,809.40 = 88,252.80/x
  3. Step 3: Cross multiply
    298,643.28x = 447,809.40 × 88,252.80
  4. Step 4: Simplify right side
    298,643.28x = 39,520,433,416.32
  5. Step 5: Solve for x
    x = 39,520,433,416.32/298,643.28
  6. Step 6: Final answer
    x = 132,333.24

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