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Finding the Fourth Proportional to 111,671.25, 167,439.43 and 45,033.76

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Solution

The fourth proportional to 111,671.25, 167,439.43 and 45,033.76 is: 67,523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,671.25 : 167,439.43 = 45,033.76 : x
  2. Step 2: Convert to fraction form
    111,671.25/167,439.43 = 45,033.76/x
  3. Step 3: Cross multiply
    111,671.25x = 167,439.43 × 45,033.76
  4. Step 4: Simplify right side
    111,671.25x = 7,540,427,105.16
  5. Step 5: Solve for x
    x = 7,540,427,105.16/111,671.25
  6. Step 6: Final answer
    x = 67,523.44

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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.