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Finding the Fourth Proportional to 120,644.46, 166,481.52 and 66,929.34

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Solution

The fourth proportional to 120,644.46, 166,481.52 and 66,929.34 is: 92,358.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,644.46 : 166,481.52 = 66,929.34 : x
  2. Step 2: Convert to fraction form
    120,644.46/166,481.52 = 66,929.34/x
  3. Step 3: Cross multiply
    120,644.46x = 166,481.52 × 66,929.34
  4. Step 4: Simplify right side
    120,644.46x = 11,142,498,255.80
  5. Step 5: Solve for x
    x = 11,142,498,255.80/120,644.46
  6. Step 6: Final answer
    x = 92,358.14

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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.