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Finding the Fourth Proportional to 73,122.70, 109,611.15 and 33,610.90

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Solution

The fourth proportional to 73,122.70, 109,611.15 and 33,610.90 is: 50,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,122.70 : 109,611.15 = 33,610.90 : x
  2. Step 2: Convert to fraction form
    73,122.70/109,611.15 = 33,610.90/x
  3. Step 3: Cross multiply
    73,122.70x = 109,611.15 × 33,610.90
  4. Step 4: Simplify right side
    73,122.70x = 3,684,129,401.54
  5. Step 5: Solve for x
    x = 3,684,129,401.54/73,122.70
  6. Step 6: Final answer
    x = 50,382.84

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1.5x scale

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.