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Finding the Fourth Proportional to 54,676.41, 81,715.02 and 39,916.41

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Solution

The fourth proportional to 54,676.41, 81,715.02 and 39,916.41 is: 59,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,676.41 : 81,715.02 = 39,916.41 : x
  2. Step 2: Convert to fraction form
    54,676.41/81,715.02 = 39,916.41/x
  3. Step 3: Cross multiply
    54,676.41x = 81,715.02 × 39,916.41
  4. Step 4: Simplify right side
    54,676.41x = 3,261,770,241.48
  5. Step 5: Solve for x
    x = 3,261,770,241.48/54,676.41
  6. Step 6: Final answer
    x = 59,655.90

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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.