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Finding the Fourth Proportional to 109,481.56, 164,143.52 and 67,274.44

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Solution

The fourth proportional to 109,481.56, 164,143.52 and 67,274.44 is: 100,863.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,481.56 : 164,143.52 = 67,274.44 : x
  2. Step 2: Convert to fraction form
    109,481.56/164,143.52 = 67,274.44/x
  3. Step 3: Cross multiply
    109,481.56x = 164,143.52 × 67,274.44
  4. Step 4: Simplify right side
    109,481.56x = 11,042,662,566.91
  5. Step 5: Solve for x
    x = 11,042,662,566.91/109,481.56
  6. Step 6: Final answer
    x = 100,863.22

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1.5x scale

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.