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Finding the Fourth Proportional to 120,904.92, 166,848.90 and 67,194.96

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Solution

The fourth proportional to 120,904.92, 166,848.90 and 67,194.96 is: 92,729.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,904.92 : 166,848.90 = 67,194.96 : x
  2. Step 2: Convert to fraction form
    120,904.92/166,848.90 = 67,194.96/x
  3. Step 3: Cross multiply
    120,904.92x = 166,848.90 × 67,194.96
  4. Step 4: Simplify right side
    120,904.92x = 11,211,405,161.54
  5. Step 5: Solve for x
    x = 11,211,405,161.54/120,904.92
  6. Step 6: Final answer
    x = 92,729.11

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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.