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Finding the Fourth Proportional to 123,059.40, 184,589.10 and 67,072.20

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Solution

The fourth proportional to 123,059.40, 184,589.10 and 67,072.20 is: 100,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,059.40 : 184,589.10 = 67,072.20 : x
  2. Step 2: Convert to fraction form
    123,059.40/184,589.10 = 67,072.20/x
  3. Step 3: Cross multiply
    123,059.40x = 184,589.10 × 67,072.20
  4. Step 4: Simplify right side
    123,059.40x = 12,380,797,033.02
  5. Step 5: Solve for x
    x = 12,380,797,033.02/123,059.40
  6. Step 6: Final answer
    x = 100,608.30

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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.