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Finding the Fourth Proportional to 120,777.53, 166,672.08 and 67,062.74

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Solution

The fourth proportional to 120,777.53, 166,672.08 and 67,062.74 is: 92,546.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,777.53 : 166,672.08 = 67,062.74 : x
  2. Step 2: Convert to fraction form
    120,777.53/166,672.08 = 67,062.74/x
  3. Step 3: Cross multiply
    120,777.53x = 166,672.08 × 67,062.74
  4. Step 4: Simplify right side
    120,777.53x = 11,177,485,532.94
  5. Step 5: Solve for x
    x = 11,177,485,532.94/120,777.53
  6. Step 6: Final answer
    x = 92,546.07

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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.