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Finding the Fourth Proportional to 73,092.70, 109,645.94 and 20,501.97

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Solution

The fourth proportional to 73,092.70, 109,645.94 and 20,501.97 is: 30,754.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,092.70 : 109,645.94 = 20,501.97 : x
  2. Step 2: Convert to fraction form
    73,092.70/109,645.94 = 20,501.97/x
  3. Step 3: Cross multiply
    73,092.70x = 109,645.94 × 20,501.97
  4. Step 4: Simplify right side
    73,092.70x = 2,247,957,772.50
  5. Step 5: Solve for x
    x = 2,247,957,772.50/73,092.70
  6. Step 6: Final answer
    x = 30,754.89

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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.