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Finding the Fourth Proportional to 71,442, 98,555.94 and 50,232.96

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Solution

The fourth proportional to 71,442, 98,555.94 and 50,232.96 is: 69,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,442 : 98,555.94 = 50,232.96 : x
  2. Step 2: Convert to fraction form
    71,442/98,555.94 = 50,232.96/x
  3. Step 3: Cross multiply
    71,442x = 98,555.94 × 50,232.96
  4. Step 4: Simplify right side
    71,442x = 4,950,756,591.78
  5. Step 5: Solve for x
    x = 4,950,756,591.78/71,442
  6. Step 6: Final answer
    x = 69,297.56

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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.