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Finding the Fourth Proportional to 71,463.78, 98,651.67 and 50,037.75

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Solution

The fourth proportional to 71,463.78, 98,651.67 and 50,037.75 is: 69,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,463.78 : 98,651.67 = 50,037.75 : x
  2. Step 2: Convert to fraction form
    71,463.78/98,651.67 = 50,037.75/x
  3. Step 3: Cross multiply
    71,463.78x = 98,651.67 × 50,037.75
  4. Step 4: Simplify right side
    71,463.78x = 4,936,307,600.54
  5. Step 5: Solve for x
    x = 4,936,307,600.54/71,463.78
  6. Step 6: Final answer
    x = 69,074.26

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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.