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Finding the Fourth Proportional to 103,906.70, 155,860.05 and 33,793.10

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Solution

The fourth proportional to 103,906.70, 155,860.05 and 33,793.10 is: 50,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,906.70 : 155,860.05 = 33,793.10 : x
  2. Step 2: Convert to fraction form
    103,906.70/155,860.05 = 33,793.10/x
  3. Step 3: Cross multiply
    103,906.70x = 155,860.05 × 33,793.10
  4. Step 4: Simplify right side
    103,906.70x = 5,266,994,255.66
  5. Step 5: Solve for x
    x = 5,266,994,255.66/103,906.70
  6. Step 6: Final answer
    x = 50,689.65

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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.