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Finding the Fourth Proportional to 81,846.56, 122,745.60 and 35,088.32

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Solution

The fourth proportional to 81,846.56, 122,745.60 and 35,088.32 is: 52,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,846.56 : 122,745.60 = 35,088.32 : x
  2. Step 2: Convert to fraction form
    81,846.56/122,745.60 = 35,088.32/x
  3. Step 3: Cross multiply
    81,846.56x = 122,745.60 × 35,088.32
  4. Step 4: Simplify right side
    81,846.56x = 4,306,936,891.39
  5. Step 5: Solve for x
    x = 4,306,936,891.39/81,846.56
  6. Step 6: Final answer
    x = 52,622.09

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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.