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Finding the Fourth Proportional to 199,507.91, 275,327.55 and 108,868.85

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Solution

The fourth proportional to 199,507.91, 275,327.55 and 108,868.85 is: 150,242.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,507.91 : 275,327.55 = 108,868.85 : x
  2. Step 2: Convert to fraction form
    199,507.91/275,327.55 = 108,868.85/x
  3. Step 3: Cross multiply
    199,507.91x = 275,327.55 × 108,868.85
  4. Step 4: Simplify right side
    199,507.91x = 29,974,592,365.18
  5. Step 5: Solve for x
    x = 29,974,592,365.18/199,507.91
  6. Step 6: Final answer
    x = 150,242.62

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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.