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Finding the Fourth Proportional to 45,845.71, 68,773.71 and 41,136.78

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Solution

The fourth proportional to 45,845.71, 68,773.71 and 41,136.78 is: 61,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,845.71 : 68,773.71 = 41,136.78 : x
  2. Step 2: Convert to fraction form
    45,845.71/68,773.71 = 41,136.78/x
  3. Step 3: Cross multiply
    45,845.71x = 68,773.71 × 41,136.78
  4. Step 4: Simplify right side
    45,845.71x = 2,829,128,978.05
  5. Step 5: Solve for x
    x = 2,829,128,978.05/45,845.71
  6. Step 6: Final answer
    x = 61,709.79

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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.