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Finding the Fourth Proportional to 188,976.80, 283,076.40 and 95,535.20

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Solution

The fourth proportional to 188,976.80, 283,076.40 and 95,535.20 is: 143,106.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,976.80 : 283,076.40 = 95,535.20 : x
  2. Step 2: Convert to fraction form
    188,976.80/283,076.40 = 95,535.20/x
  3. Step 3: Cross multiply
    188,976.80x = 283,076.40 × 95,535.20
  4. Step 4: Simplify right side
    188,976.80x = 27,043,760,489.28
  5. Step 5: Solve for x
    x = 27,043,760,489.28/188,976.80
  6. Step 6: Final answer
    x = 143,106.25

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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.