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Finding the Fourth Proportional to 73,993.73, 110,997.08 and 20,686.29

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Solution

The fourth proportional to 73,993.73, 110,997.08 and 20,686.29 is: 31,031.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,993.73 : 110,997.08 = 20,686.29 : x
  2. Step 2: Convert to fraction form
    73,993.73/110,997.08 = 20,686.29/x
  3. Step 3: Cross multiply
    73,993.73x = 110,997.08 × 20,686.29
  4. Step 4: Simplify right side
    73,993.73x = 2,296,117,460.30
  5. Step 5: Solve for x
    x = 2,296,117,460.30/73,993.73
  6. Step 6: Final answer
    x = 31,031.24

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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.