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Finding the Fourth Proportional to 188,839.70, 283,587.60 and 100,266.20

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Solution

The fourth proportional to 188,839.70, 283,587.60 and 100,266.20 is: 150,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,839.70 : 283,587.60 = 100,266.20 : x
  2. Step 2: Convert to fraction form
    188,839.70/283,587.60 = 100,266.20/x
  3. Step 3: Cross multiply
    188,839.70x = 283,587.60 × 100,266.20
  4. Step 4: Simplify right side
    188,839.70x = 28,434,251,019.12
  5. Step 5: Solve for x
    x = 28,434,251,019.12/188,839.70
  6. Step 6: Final answer
    x = 150,573.48

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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.