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Finding the Fourth Proportional to 73,803.60, 110,716.20 and 38,745.90

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Solution

The fourth proportional to 73,803.60, 110,716.20 and 38,745.90 is: 58,124.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,803.60 : 110,716.20 = 38,745.90 : x
  2. Step 2: Convert to fraction form
    73,803.60/110,716.20 = 38,745.90/x
  3. Step 3: Cross multiply
    73,803.60x = 110,716.20 × 38,745.90
  4. Step 4: Simplify right side
    73,803.60x = 4,289,798,813.58
  5. Step 5: Solve for x
    x = 4,289,798,813.58/73,803.60
  6. Step 6: Final answer
    x = 58,124.52

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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.