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Finding the Fourth Proportional to 67,578.32, 93,255.36 and 39,281.78

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Solution

The fourth proportional to 67,578.32, 93,255.36 and 39,281.78 is: 54,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,578.32 : 93,255.36 = 39,281.78 : x
  2. Step 2: Convert to fraction form
    67,578.32/93,255.36 = 39,281.78/x
  3. Step 3: Cross multiply
    67,578.32x = 93,255.36 × 39,281.78
  4. Step 4: Simplify right side
    67,578.32x = 3,663,236,535.34
  5. Step 5: Solve for x
    x = 3,663,236,535.34/67,578.32
  6. Step 6: Final answer
    x = 54,207.27

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