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Finding the Fourth Proportional to 48,754.92, 73,137.87 and 19,168.86

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Solution

The fourth proportional to 48,754.92, 73,137.87 and 19,168.86 is: 28,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,754.92 : 73,137.87 = 19,168.86 : x
  2. Step 2: Convert to fraction form
    48,754.92/73,137.87 = 19,168.86/x
  3. Step 3: Cross multiply
    48,754.92x = 73,137.87 × 19,168.86
  4. Step 4: Simplify right side
    48,754.92x = 1,401,969,590.73
  5. Step 5: Solve for x
    x = 1,401,969,590.73/48,754.92
  6. Step 6: Final answer
    x = 28,755.45

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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.