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Finding the Fourth Proportional to 73,821.73, 101,879.63 and 41,988.73

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Solution

The fourth proportional to 73,821.73, 101,879.63 and 41,988.73 is: 57,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,821.73 : 101,879.63 = 41,988.73 : x
  2. Step 2: Convert to fraction form
    73,821.73/101,879.63 = 41,988.73/x
  3. Step 3: Cross multiply
    73,821.73x = 101,879.63 × 41,988.73
  4. Step 4: Simplify right side
    73,821.73x = 4,277,796,276.57
  5. Step 5: Solve for x
    x = 4,277,796,276.57/73,821.73
  6. Step 6: Final answer
    x = 57,947.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.