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Finding the Fourth Proportional to 103,995.21, 155,992.82 and 33,874.52

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Solution

The fourth proportional to 103,995.21, 155,992.82 and 33,874.52 is: 50,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,995.21 : 155,992.82 = 33,874.52 : x
  2. Step 2: Convert to fraction form
    103,995.21/155,992.82 = 33,874.52/x
  3. Step 3: Cross multiply
    103,995.21x = 155,992.82 × 33,874.52
  4. Step 4: Simplify right side
    103,995.21x = 5,284,181,900.95
  5. Step 5: Solve for x
    x = 5,284,181,900.95/103,995.21
  6. Step 6: Final answer
    x = 50,811.78

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Double scale
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Similar ratio
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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.