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Finding the Fourth Proportional to 73,949.80, 110,994.30 and 38,914.60

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Solution

The fourth proportional to 73,949.80, 110,994.30 and 38,914.60 is: 58,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,949.80 : 110,994.30 = 38,914.60 : x
  2. Step 2: Convert to fraction form
    73,949.80/110,994.30 = 38,914.60/x
  3. Step 3: Cross multiply
    73,949.80x = 110,994.30 × 38,914.60
  4. Step 4: Simplify right side
    73,949.80x = 4,319,298,786.78
  5. Step 5: Solve for x
    x = 4,319,298,786.78/73,949.80
  6. Step 6: Final answer
    x = 58,408.53

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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.