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Finding the Fourth Proportional to 105,761.56, 158,541.21 and 39,183.82

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Solution

The fourth proportional to 105,761.56, 158,541.21 and 39,183.82 is: 58,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,761.56 : 158,541.21 = 39,183.82 : x
  2. Step 2: Convert to fraction form
    105,761.56/158,541.21 = 39,183.82/x
  3. Step 3: Cross multiply
    105,761.56x = 158,541.21 × 39,183.82
  4. Step 4: Simplify right side
    105,761.56x = 6,212,250,235.22
  5. Step 5: Solve for x
    x = 6,212,250,235.22/105,761.56
  6. Step 6: Final answer
    x = 58,738.26

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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.