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Finding the Fourth Proportional to 87,998.40, 131,900.40 and 48,583.80

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Solution

The fourth proportional to 87,998.40, 131,900.40 and 48,583.80 is: 72,822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.40 : 131,900.40 = 48,583.80 : x
  2. Step 2: Convert to fraction form
    87,998.40/131,900.40 = 48,583.80/x
  3. Step 3: Cross multiply
    87,998.40x = 131,900.40 × 48,583.80
  4. Step 4: Simplify right side
    87,998.40x = 6,408,222,653.52
  5. Step 5: Solve for x
    x = 6,408,222,653.52/87,998.40
  6. Step 6: Final answer
    x = 72,822.04

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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.