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Finding the Fourth Proportional to 188,809.62, 283,131.33 and 100,042.66

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Solution

The fourth proportional to 188,809.62, 283,131.33 and 100,042.66 is: 150,019.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,809.62 : 283,131.33 = 100,042.66 : x
  2. Step 2: Convert to fraction form
    188,809.62/283,131.33 = 100,042.66/x
  3. Step 3: Cross multiply
    188,809.62x = 283,131.33 × 100,042.66
  4. Step 4: Simplify right side
    188,809.62x = 28,325,211,382.54
  5. Step 5: Solve for x
    x = 28,325,211,382.54/188,809.62
  6. Step 6: Final answer
    x = 150,019.96

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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.