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Finding the Fourth Proportional to 54,324.50, 74,968.08 and 31,679.20

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Solution

The fourth proportional to 54,324.50, 74,968.08 and 31,679.20 is: 43,717.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,324.50 : 74,968.08 = 31,679.20 : x
  2. Step 2: Convert to fraction form
    54,324.50/74,968.08 = 31,679.20/x
  3. Step 3: Cross multiply
    54,324.50x = 74,968.08 × 31,679.20
  4. Step 4: Simplify right side
    54,324.50x = 2,374,928,425.10
  5. Step 5: Solve for x
    x = 2,374,928,425.10/54,324.50
  6. Step 6: Final answer
    x = 43,717.45

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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.