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Finding the Fourth Proportional to 236,508.39, 354,765.22 and 78,736.59

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Solution

The fourth proportional to 236,508.39, 354,765.22 and 78,736.59 is: 118,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,508.39 : 354,765.22 = 78,736.59 : x
  2. Step 2: Convert to fraction form
    236,508.39/354,765.22 = 78,736.59/x
  3. Step 3: Cross multiply
    236,508.39x = 354,765.22 × 78,736.59
  4. Step 4: Simplify right side
    236,508.39x = 27,933,003,476.56
  5. Step 5: Solve for x
    x = 27,933,003,476.56/236,508.39
  6. Step 6: Final answer
    x = 118,105.76

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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.