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Finding the Fourth Proportional to 101,321.91, 151,754.45 and 48,770.73

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Solution

The fourth proportional to 101,321.91, 151,754.45 and 48,770.73 is: 73,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,321.91 : 151,754.45 = 48,770.73 : x
  2. Step 2: Convert to fraction form
    101,321.91/151,754.45 = 48,770.73/x
  3. Step 3: Cross multiply
    101,321.91x = 151,754.45 × 48,770.73
  4. Step 4: Simplify right side
    101,321.91x = 7,401,175,063.39
  5. Step 5: Solve for x
    x = 7,401,175,063.39/101,321.91
  6. Step 6: Final answer
    x = 73,046.15

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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.