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Finding the Fourth Proportional to 227,991.80, 342,004.90 and 68,055.11

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Solution

The fourth proportional to 227,991.80, 342,004.90 and 68,055.11 is: 102,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,991.80 : 342,004.90 = 68,055.11 : x
  2. Step 2: Convert to fraction form
    227,991.80/342,004.90 = 68,055.11/x
  3. Step 3: Cross multiply
    227,991.80x = 342,004.90 × 68,055.11
  4. Step 4: Simplify right side
    227,991.80x = 23,275,181,090.04
  5. Step 5: Solve for x
    x = 23,275,181,090.04/227,991.80
  6. Step 6: Final answer
    x = 102,087.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.