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Finding the Fourth Proportional to 136,982.44, 205,520.34 and 73,809.04

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Solution

The fourth proportional to 136,982.44, 205,520.34 and 73,809.04 is: 110,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,982.44 : 205,520.34 = 73,809.04 : x
  2. Step 2: Convert to fraction form
    136,982.44/205,520.34 = 73,809.04/x
  3. Step 3: Cross multiply
    136,982.44x = 205,520.34 × 73,809.04
  4. Step 4: Simplify right side
    136,982.44x = 15,169,258,995.87
  5. Step 5: Solve for x
    x = 15,169,258,995.87/136,982.44
  6. Step 6: Final answer
    x = 110,738.71

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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.