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Finding the Fourth Proportional to 199,620.93, 275,472.49 and 108,973.42

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Solution

The fourth proportional to 199,620.93, 275,472.49 and 108,973.42 is: 150,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,620.93 : 275,472.49 = 108,973.42 : x
  2. Step 2: Convert to fraction form
    199,620.93/275,472.49 = 108,973.42/x
  3. Step 3: Cross multiply
    199,620.93x = 275,472.49 × 108,973.42
  4. Step 4: Simplify right side
    199,620.93x = 30,019,179,351.22
  5. Step 5: Solve for x
    x = 30,019,179,351.22/199,620.93
  6. Step 6: Final answer
    x = 150,380.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.