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Finding the Fourth Proportional to 73,343.61, 109,997.80 and 33,862.79

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Solution

The fourth proportional to 73,343.61, 109,997.80 and 33,862.79 is: 50,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,343.61 : 109,997.80 = 33,862.79 : x
  2. Step 2: Convert to fraction form
    73,343.61/109,997.80 = 33,862.79/x
  3. Step 3: Cross multiply
    73,343.61x = 109,997.80 × 33,862.79
  4. Step 4: Simplify right side
    73,343.61x = 3,724,832,401.86
  5. Step 5: Solve for x
    x = 3,724,832,401.86/73,343.61
  6. Step 6: Final answer
    x = 50,786.05

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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.