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Finding the Fourth Proportional to 192,264.10, 288,446.55 and 73,939.30

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Solution

The fourth proportional to 192,264.10, 288,446.55 and 73,939.30 is: 110,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,264.10 : 288,446.55 = 73,939.30 : x
  2. Step 2: Convert to fraction form
    192,264.10/288,446.55 = 73,939.30/x
  3. Step 3: Cross multiply
    192,264.10x = 288,446.55 × 73,939.30
  4. Step 4: Simplify right side
    192,264.10x = 21,327,535,994.42
  5. Step 5: Solve for x
    x = 21,327,535,994.42/192,264.10
  6. Step 6: Final answer
    x = 110,928.33

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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.