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Finding the Fourth Proportional to 52,404.73, 78,639.30 and 20,809.26

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Solution

The fourth proportional to 52,404.73, 78,639.30 and 20,809.26 is: 31,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,404.73 : 78,639.30 = 20,809.26 : x
  2. Step 2: Convert to fraction form
    52,404.73/78,639.30 = 20,809.26/x
  3. Step 3: Cross multiply
    52,404.73x = 78,639.30 × 20,809.26
  4. Step 4: Simplify right side
    52,404.73x = 1,636,425,639.92
  5. Step 5: Solve for x
    x = 1,636,425,639.92/52,404.73
  6. Step 6: Final answer
    x = 31,226.68

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