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Finding the Fourth Proportional to 200,481.78, 276,443.22 and 127,769.60

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Solution

The fourth proportional to 200,481.78, 276,443.22 and 127,769.60 is: 176,180.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,481.78 : 276,443.22 = 127,769.60 : x
  2. Step 2: Convert to fraction form
    200,481.78/276,443.22 = 127,769.60/x
  3. Step 3: Cross multiply
    200,481.78x = 276,443.22 × 127,769.60
  4. Step 4: Simplify right side
    200,481.78x = 35,321,040,453.00
  5. Step 5: Solve for x
    x = 35,321,040,453.00/200,481.78
  6. Step 6: Final answer
    x = 176,180.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.