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Finding the Fourth Proportional to 164,422.40, 246,633.60 and 130,961.30

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Solution

The fourth proportional to 164,422.40, 246,633.60 and 130,961.30 is: 196,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,422.40 : 246,633.60 = 130,961.30 : x
  2. Step 2: Convert to fraction form
    164,422.40/246,633.60 = 130,961.30/x
  3. Step 3: Cross multiply
    164,422.40x = 246,633.60 × 130,961.30
  4. Step 4: Simplify right side
    164,422.40x = 32,299,456,879.68
  5. Step 5: Solve for x
    x = 32,299,456,879.68/164,422.40
  6. Step 6: Final answer
    x = 196,441.95

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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.