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Finding the Fourth Proportional to 61,772.88, 85,246.87 and 33,478.56

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Solution

The fourth proportional to 61,772.88, 85,246.87 and 33,478.56 is: 46,200.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,772.88 : 85,246.87 = 33,478.56 : x
  2. Step 2: Convert to fraction form
    61,772.88/85,246.87 = 33,478.56/x
  3. Step 3: Cross multiply
    61,772.88x = 85,246.87 × 33,478.56
  4. Step 4: Simplify right side
    61,772.88x = 2,853,942,452.11
  5. Step 5: Solve for x
    x = 2,853,942,452.11/61,772.88
  6. Step 6: Final answer
    x = 46,200.57

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Why These Related Problems?

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