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Finding the Fourth Proportional to 77,363.56, 106,786.02 and 43,851.88

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Solution

The fourth proportional to 77,363.56, 106,786.02 and 43,851.88 is: 60,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,363.56 : 106,786.02 = 43,851.88 : x
  2. Step 2: Convert to fraction form
    77,363.56/106,786.02 = 43,851.88/x
  3. Step 3: Cross multiply
    77,363.56x = 106,786.02 × 43,851.88
  4. Step 4: Simplify right side
    77,363.56x = 4,682,767,734.72
  5. Step 5: Solve for x
    x = 4,682,767,734.72/77,363.56
  6. Step 6: Final answer
    x = 60,529.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.