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Finding the Fourth Proportional to 73,018.92, 109,732.86 and 43,441.32

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Solution

The fourth proportional to 73,018.92, 109,732.86 and 43,441.32 is: 65,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,018.92 : 109,732.86 = 43,441.32 : x
  2. Step 2: Convert to fraction form
    73,018.92/109,732.86 = 43,441.32/x
  3. Step 3: Cross multiply
    73,018.92x = 109,732.86 × 43,441.32
  4. Step 4: Simplify right side
    73,018.92x = 4,766,940,285.78
  5. Step 5: Solve for x
    x = 4,766,940,285.78/73,018.92
  6. Step 6: Final answer
    x = 65,283.63

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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.