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Finding the Fourth Proportional to 188,907.48, 283,033.98 and 132,640.56

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Solution

The fourth proportional to 188,907.48, 283,033.98 and 132,640.56 is: 198,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,907.48 : 283,033.98 = 132,640.56 : x
  2. Step 2: Convert to fraction form
    188,907.48/283,033.98 = 132,640.56/x
  3. Step 3: Cross multiply
    188,907.48x = 283,033.98 × 132,640.56
  4. Step 4: Simplify right side
    188,907.48x = 37,541,785,606.23
  5. Step 5: Solve for x
    x = 37,541,785,606.23/188,907.48
  6. Step 6: Final answer
    x = 198,731.07

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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.