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Finding the Fourth Proportional to 162,661.20, 243,991.80 and 83,929.20

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Solution

The fourth proportional to 162,661.20, 243,991.80 and 83,929.20 is: 125,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,661.20 : 243,991.80 = 83,929.20 : x
  2. Step 2: Convert to fraction form
    162,661.20/243,991.80 = 83,929.20/x
  3. Step 3: Cross multiply
    162,661.20x = 243,991.80 × 83,929.20
  4. Step 4: Simplify right side
    162,661.20x = 20,478,036,580.56
  5. Step 5: Solve for x
    x = 20,478,036,580.56/162,661.20
  6. Step 6: Final answer
    x = 125,893.80

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