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Finding the Fourth Proportional to 199,559.72, 275,398.08 and 108,921.44

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Solution

The fourth proportional to 199,559.72, 275,398.08 and 108,921.44 is: 150,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,559.72 : 275,398.08 = 108,921.44 : x
  2. Step 2: Convert to fraction form
    199,559.72/275,398.08 = 108,921.44/x
  3. Step 3: Cross multiply
    199,559.72x = 275,398.08 × 108,921.44
  4. Step 4: Simplify right side
    199,559.72x = 29,996,755,446.84
  5. Step 5: Solve for x
    x = 29,996,755,446.84/199,559.72
  6. Step 6: Final answer
    x = 150,314.68

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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.