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Finding the Fourth Proportional to 100,749.60, 150,999.83 and 50,843.97

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Solution

The fourth proportional to 100,749.60, 150,999.83 and 50,843.97 is: 76,203.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,749.60 : 150,999.83 = 50,843.97 : x
  2. Step 2: Convert to fraction form
    100,749.60/150,999.83 = 50,843.97/x
  3. Step 3: Cross multiply
    100,749.60x = 150,999.83 × 50,843.97
  4. Step 4: Simplify right side
    100,749.60x = 7,677,430,196.72
  5. Step 5: Solve for x
    x = 7,677,430,196.72/100,749.60
  6. Step 6: Final answer
    x = 76,203.09

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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.