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Finding the Fourth Proportional to 267,773.60, 401,660.40 and 80,760.80

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Solution

The fourth proportional to 267,773.60, 401,660.40 and 80,760.80 is: 121,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,773.60 : 401,660.40 = 80,760.80 : x
  2. Step 2: Convert to fraction form
    267,773.60/401,660.40 = 80,760.80/x
  3. Step 3: Cross multiply
    267,773.60x = 401,660.40 × 80,760.80
  4. Step 4: Simplify right side
    267,773.60x = 32,438,415,232.32
  5. Step 5: Solve for x
    x = 32,438,415,232.32/267,773.60
  6. Step 6: Final answer
    x = 121,141.20

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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.