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Finding the Fourth Proportional to 120,672.29, 166,527.73 and 66,957.68

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Solution

The fourth proportional to 120,672.29, 166,527.73 and 66,957.68 is: 92,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,672.29 : 166,527.73 = 66,957.68 : x
  2. Step 2: Convert to fraction form
    120,672.29/166,527.73 = 66,957.68/x
  3. Step 3: Cross multiply
    120,672.29x = 166,527.73 × 66,957.68
  4. Step 4: Simplify right side
    120,672.29x = 11,150,310,456.47
  5. Step 5: Solve for x
    x = 11,150,310,456.47/120,672.29
  6. Step 6: Final answer
    x = 92,401.58

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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.