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Finding the Fourth Proportional to 80,897.20, 121,345.80 and 73,898.80

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Solution

The fourth proportional to 80,897.20, 121,345.80 and 73,898.80 is: 110,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,897.20 : 121,345.80 = 73,898.80 : x
  2. Step 2: Convert to fraction form
    80,897.20/121,345.80 = 73,898.80/x
  3. Step 3: Cross multiply
    80,897.20x = 121,345.80 × 73,898.80
  4. Step 4: Simplify right side
    80,897.20x = 8,967,309,005.04
  5. Step 5: Solve for x
    x = 8,967,309,005.04/80,897.20
  6. Step 6: Final answer
    x = 110,848.20

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