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Finding the Fourth Proportional to 54,532.44, 81,344.45 and 53,629.29

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Solution

The fourth proportional to 54,532.44, 81,344.45 and 53,629.29 is: 79,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,532.44 : 81,344.45 = 53,629.29 : x
  2. Step 2: Convert to fraction form
    54,532.44/81,344.45 = 53,629.29/x
  3. Step 3: Cross multiply
    54,532.44x = 81,344.45 × 53,629.29
  4. Step 4: Simplify right side
    54,532.44x = 4,362,445,233.01
  5. Step 5: Solve for x
    x = 4,362,445,233.01/54,532.44
  6. Step 6: Final answer
    x = 79,997.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.