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Finding the Fourth Proportional to 73,340.64, 109,993.26 and 33,859.80

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Solution

The fourth proportional to 73,340.64, 109,993.26 and 33,859.80 is: 50,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,340.64 : 109,993.26 = 33,859.80 : x
  2. Step 2: Convert to fraction form
    73,340.64/109,993.26 = 33,859.80/x
  3. Step 3: Cross multiply
    73,340.64x = 109,993.26 × 33,859.80
  4. Step 4: Simplify right side
    73,340.64x = 3,724,349,784.95
  5. Step 5: Solve for x
    x = 3,724,349,784.95/73,340.64
  6. Step 6: Final answer
    x = 50,781.53

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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.