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Finding the Fourth Proportional to 54,085.44, 74,629.92 and 31,736.64

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Solution

The fourth proportional to 54,085.44, 74,629.92 and 31,736.64 is: 43,791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,085.44 : 74,629.92 = 31,736.64 : x
  2. Step 2: Convert to fraction form
    54,085.44/74,629.92 = 31,736.64/x
  3. Step 3: Cross multiply
    54,085.44x = 74,629.92 × 31,736.64
  4. Step 4: Simplify right side
    54,085.44x = 2,368,502,904.27
  5. Step 5: Solve for x
    x = 2,368,502,904.27/54,085.44
  6. Step 6: Final answer
    x = 43,791.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.