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Finding the Fourth Proportional to 54,244, 81,314.70 and 40,896.28

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Solution

The fourth proportional to 54,244, 81,314.70 and 40,896.28 is: 61,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,244 : 81,314.70 = 40,896.28 : x
  2. Step 2: Convert to fraction form
    54,244/81,314.70 = 40,896.28/x
  3. Step 3: Cross multiply
    54,244x = 81,314.70 × 40,896.28
  4. Step 4: Simplify right side
    54,244x = 3,325,468,739.32
  5. Step 5: Solve for x
    x = 3,325,468,739.32/54,244
  6. Step 6: Final answer
    x = 61,305.74

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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.