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Finding the Fourth Proportional to 222,391.92, 306,896.46 and 126,883.20

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Solution

The fourth proportional to 222,391.92, 306,896.46 and 126,883.20 is: 175,096.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,391.92 : 306,896.46 = 126,883.20 : x
  2. Step 2: Convert to fraction form
    222,391.92/306,896.46 = 126,883.20/x
  3. Step 3: Cross multiply
    222,391.92x = 306,896.46 × 126,883.20
  4. Step 4: Simplify right side
    222,391.92x = 38,940,004,913.47
  5. Step 5: Solve for x
    x = 38,940,004,913.47/222,391.92
  6. Step 6: Final answer
    x = 175,096.31

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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.