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Finding the Fourth Proportional to 206,542.80, 309,820.68 and 73,420.92

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Solution

The fourth proportional to 206,542.80, 309,820.68 and 73,420.92 is: 110,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,542.80 : 309,820.68 = 73,420.92 : x
  2. Step 2: Convert to fraction form
    206,542.80/309,820.68 = 73,420.92/x
  3. Step 3: Cross multiply
    206,542.80x = 309,820.68 × 73,420.92
  4. Step 4: Simplify right side
    206,542.80x = 22,747,319,360.63
  5. Step 5: Solve for x
    x = 22,747,319,360.63/206,542.80
  6. Step 6: Final answer
    x = 110,133.68

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