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Finding the Fourth Proportional to 73,274, 109,910.83 and 48,132.21

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Solution

The fourth proportional to 73,274, 109,910.83 and 48,132.21 is: 72,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,274 : 109,910.83 = 48,132.21 : x
  2. Step 2: Convert to fraction form
    73,274/109,910.83 = 48,132.21/x
  3. Step 3: Cross multiply
    73,274x = 109,910.83 × 48,132.21
  4. Step 4: Simplify right side
    73,274x = 5,290,251,150.83
  5. Step 5: Solve for x
    x = 5,290,251,150.83/73,274
  6. Step 6: Final answer
    x = 72,198.20

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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.