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Finding the Fourth Proportional to 192,874.45, 289,060.35 and 107,481.90

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Solution

The fourth proportional to 192,874.45, 289,060.35 and 107,481.90 is: 161,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,874.45 : 289,060.35 = 107,481.90 : x
  2. Step 2: Convert to fraction form
    192,874.45/289,060.35 = 107,481.90/x
  3. Step 3: Cross multiply
    192,874.45x = 289,060.35 × 107,481.90
  4. Step 4: Simplify right side
    192,874.45x = 31,068,755,817.91
  5. Step 5: Solve for x
    x = 31,068,755,817.91/192,874.45
  6. Step 6: Final answer
    x = 161,082.80

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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.