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Finding the Fourth Proportional to 73,340.36, 109,992.91 and 33,859.55

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Solution

The fourth proportional to 73,340.36, 109,992.91 and 33,859.55 is: 50,781.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,340.36 : 109,992.91 = 33,859.55 : x
  2. Step 2: Convert to fraction form
    73,340.36/109,992.91 = 33,859.55/x
  3. Step 3: Cross multiply
    73,340.36x = 109,992.91 × 33,859.55
  4. Step 4: Simplify right side
    73,340.36x = 3,724,310,435.79
  5. Step 5: Solve for x
    x = 3,724,310,435.79/73,340.36
  6. Step 6: Final answer
    x = 50,781.19

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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.