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Finding the Fourth Proportional to 72,456.80, 108,539.40 and 48,837.20

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Solution

The fourth proportional to 72,456.80, 108,539.40 and 48,837.20 is: 73,157.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,456.80 : 108,539.40 = 48,837.20 : x
  2. Step 2: Convert to fraction form
    72,456.80/108,539.40 = 48,837.20/x
  3. Step 3: Cross multiply
    72,456.80x = 108,539.40 × 48,837.20
  4. Step 4: Simplify right side
    72,456.80x = 5,300,760,385.68
  5. Step 5: Solve for x
    x = 5,300,760,385.68/72,456.80
  6. Step 6: Final answer
    x = 73,157.53

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