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Finding the Fourth Proportional to 62,546.50, 86,314.44 and 40,190.50

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Solution

The fourth proportional to 62,546.50, 86,314.44 and 40,190.50 is: 55,463.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,546.50 : 86,314.44 = 40,190.50 : x
  2. Step 2: Convert to fraction form
    62,546.50/86,314.44 = 40,190.50/x
  3. Step 3: Cross multiply
    62,546.50x = 86,314.44 × 40,190.50
  4. Step 4: Simplify right side
    62,546.50x = 3,469,020,500.82
  5. Step 5: Solve for x
    x = 3,469,020,500.82/62,546.50
  6. Step 6: Final answer
    x = 55,463.06

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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.