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Finding the Fourth Proportional to 103,451.70, 155,163.15 and 33,338.10

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Solution

The fourth proportional to 103,451.70, 155,163.15 and 33,338.10 is: 50,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,451.70 : 155,163.15 = 33,338.10 : x
  2. Step 2: Convert to fraction form
    103,451.70/155,163.15 = 33,338.10/x
  3. Step 3: Cross multiply
    103,451.70x = 155,163.15 × 33,338.10
  4. Step 4: Simplify right side
    103,451.70x = 5,172,844,611.02
  5. Step 5: Solve for x
    x = 5,172,844,611.02/103,451.70
  6. Step 6: Final answer
    x = 50,002.51

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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.