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Finding the Fourth Proportional to 73,563.38, 110,345.34 and 18,159.38

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Solution

The fourth proportional to 73,563.38, 110,345.34 and 18,159.38 is: 27,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,563.38 : 110,345.34 = 18,159.38 : x
  2. Step 2: Convert to fraction form
    73,563.38/110,345.34 = 18,159.38/x
  3. Step 3: Cross multiply
    73,563.38x = 110,345.34 × 18,159.38
  4. Step 4: Simplify right side
    73,563.38x = 2,003,802,408.56
  5. Step 5: Solve for x
    x = 2,003,802,408.56/73,563.38
  6. Step 6: Final answer
    x = 27,239.13

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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.