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Finding the Fourth Proportional to 65,645.80, 98,468.70 and 62,420.20

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Solution

The fourth proportional to 65,645.80, 98,468.70 and 62,420.20 is: 93,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,645.80 : 98,468.70 = 62,420.20 : x
  2. Step 2: Convert to fraction form
    65,645.80/98,468.70 = 62,420.20/x
  3. Step 3: Cross multiply
    65,645.80x = 98,468.70 × 62,420.20
  4. Step 4: Simplify right side
    65,645.80x = 6,146,435,947.74
  5. Step 5: Solve for x
    x = 6,146,435,947.74/65,645.80
  6. Step 6: Final answer
    x = 93,630.30

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