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Finding the Fourth Proportional to 56,916.82, 85,163.78 and 35,757.80

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Solution

The fourth proportional to 56,916.82, 85,163.78 and 35,757.80 is: 53,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,916.82 : 85,163.78 = 35,757.80 : x
  2. Step 2: Convert to fraction form
    56,916.82/85,163.78 = 35,757.80/x
  3. Step 3: Cross multiply
    56,916.82x = 85,163.78 × 35,757.80
  4. Step 4: Simplify right side
    56,916.82x = 3,045,269,076.06
  5. Step 5: Solve for x
    x = 3,045,269,076.06/56,916.82
  6. Step 6: Final answer
    x = 53,503.85

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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.