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Finding the Fourth Proportional to 73,501.39, 110,255.73 and 20,914.57

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Solution

The fourth proportional to 73,501.39, 110,255.73 and 20,914.57 is: 31,372.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,501.39 : 110,255.73 = 20,914.57 : x
  2. Step 2: Convert to fraction form
    73,501.39/110,255.73 = 20,914.57/x
  3. Step 3: Cross multiply
    73,501.39x = 110,255.73 × 20,914.57
  4. Step 4: Simplify right side
    73,501.39x = 2,305,951,182.99
  5. Step 5: Solve for x
    x = 2,305,951,182.99/73,501.39
  6. Step 6: Final answer
    x = 31,372.89

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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.