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Finding the Fourth Proportional to 73,408.20, 110,112.30 and 62,910.60

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Solution

The fourth proportional to 73,408.20, 110,112.30 and 62,910.60 is: 94,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,408.20 : 110,112.30 = 62,910.60 : x
  2. Step 2: Convert to fraction form
    73,408.20/110,112.30 = 62,910.60/x
  3. Step 3: Cross multiply
    73,408.20x = 110,112.30 × 62,910.60
  4. Step 4: Simplify right side
    73,408.20x = 6,927,230,860.38
  5. Step 5: Solve for x
    x = 6,927,230,860.38/73,408.20
  6. Step 6: Final answer
    x = 94,365.90

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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.