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Finding the Fourth Proportional to 73,003, 100,743.96 and 39,469

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Solution

The fourth proportional to 73,003, 100,743.96 and 39,469 is: 54,467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,003 : 100,743.96 = 39,469 : x
  2. Step 2: Convert to fraction form
    73,003/100,743.96 = 39,469/x
  3. Step 3: Cross multiply
    73,003x = 100,743.96 × 39,469
  4. Step 4: Simplify right side
    73,003x = 3,976,263,357.24
  5. Step 5: Solve for x
    x = 3,976,263,357.24/73,003
  6. Step 6: Final answer
    x = 54,467.12

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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.