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Finding the Fourth Proportional to 52,993.70, 73,132.66 and 29,120.98

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Solution

The fourth proportional to 52,993.70, 73,132.66 and 29,120.98 is: 40,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,993.70 : 73,132.66 = 29,120.98 : x
  2. Step 2: Convert to fraction form
    52,993.70/73,132.66 = 29,120.98/x
  3. Step 3: Cross multiply
    52,993.70x = 73,132.66 × 29,120.98
  4. Step 4: Simplify right side
    52,993.70x = 2,129,694,729.21
  5. Step 5: Solve for x
    x = 2,129,694,729.21/52,993.70
  6. Step 6: Final answer
    x = 40,187.70

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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.