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Finding the Fourth Proportional to 73,763.65, 110,546.64 and 69,039.73

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Solution

The fourth proportional to 73,763.65, 110,546.64 and 69,039.73 is: 103,467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,763.65 : 110,546.64 = 69,039.73 : x
  2. Step 2: Convert to fraction form
    73,763.65/110,546.64 = 69,039.73/x
  3. Step 3: Cross multiply
    73,763.65x = 110,546.64 × 69,039.73
  4. Step 4: Simplify right side
    73,763.65x = 7,632,109,625.27
  5. Step 5: Solve for x
    x = 7,632,109,625.27/73,763.65
  6. Step 6: Final answer
    x = 103,467.09

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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.