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Finding the Fourth Proportional to 161,555.92, 222,951.02 and 89,940.78

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Solution

The fourth proportional to 161,555.92, 222,951.02 and 89,940.78 is: 124,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,555.92 : 222,951.02 = 89,940.78 : x
  2. Step 2: Convert to fraction form
    161,555.92/222,951.02 = 89,940.78/x
  3. Step 3: Cross multiply
    161,555.92x = 222,951.02 × 89,940.78
  4. Step 4: Simplify right side
    161,555.92x = 20,052,388,190.89
  5. Step 5: Solve for x
    x = 20,052,388,190.89/161,555.92
  6. Step 6: Final answer
    x = 124,120.42

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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.