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Finding the Fourth Proportional to 199,561.72, 275,400.84 and 108,923.44

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Solution

The fourth proportional to 199,561.72, 275,400.84 and 108,923.44 is: 150,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,561.72 : 275,400.84 = 108,923.44 : x
  2. Step 2: Convert to fraction form
    199,561.72/275,400.84 = 108,923.44/x
  3. Step 3: Cross multiply
    199,561.72x = 275,400.84 × 108,923.44
  4. Step 4: Simplify right side
    199,561.72x = 29,997,606,871.69
  5. Step 5: Solve for x
    x = 29,997,606,871.69/199,561.72
  6. Step 6: Final answer
    x = 150,317.44

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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.