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Finding the Fourth Proportional to 188,998.20, 283,497.30 and 84,022.20

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Solution

The fourth proportional to 188,998.20, 283,497.30 and 84,022.20 is: 126,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,998.20 : 283,497.30 = 84,022.20 : x
  2. Step 2: Convert to fraction form
    188,998.20/283,497.30 = 84,022.20/x
  3. Step 3: Cross multiply
    188,998.20x = 283,497.30 × 84,022.20
  4. Step 4: Simplify right side
    188,998.20x = 23,820,066,840.06
  5. Step 5: Solve for x
    x = 23,820,066,840.06/188,998.20
  6. Step 6: Final answer
    x = 126,033.30

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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.