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Finding the Fourth Proportional to 56,963.63, 85,371.13 and 41,221.69

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Solution

The fourth proportional to 56,963.63, 85,371.13 and 41,221.69 is: 61,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,963.63 : 85,371.13 = 41,221.69 : x
  2. Step 2: Convert to fraction form
    56,963.63/85,371.13 = 41,221.69/x
  3. Step 3: Cross multiply
    56,963.63x = 85,371.13 × 41,221.69
  4. Step 4: Simplify right side
    56,963.63x = 3,519,141,939.33
  5. Step 5: Solve for x
    x = 3,519,141,939.33/56,963.63
  6. Step 6: Final answer
    x = 61,778.75

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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.