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Finding the Fourth Proportional to 267,772.32, 401,661.36 and 80,785.44

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Solution

The fourth proportional to 267,772.32, 401,661.36 and 80,785.44 is: 121,179.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,772.32 : 401,661.36 = 80,785.44 : x
  2. Step 2: Convert to fraction form
    267,772.32/401,661.36 = 80,785.44/x
  3. Step 3: Cross multiply
    267,772.32x = 401,661.36 × 80,785.44
  4. Step 4: Simplify right side
    267,772.32x = 32,448,389,698.60
  5. Step 5: Solve for x
    x = 32,448,389,698.60/267,772.32
  6. Step 6: Final answer
    x = 121,179.03

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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.