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Finding the Fourth Proportional to 161,003.70, 241,311.15 and 82,077.30

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Solution

The fourth proportional to 161,003.70, 241,311.15 and 82,077.30 is: 123,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,003.70 : 241,311.15 = 82,077.30 : x
  2. Step 2: Convert to fraction form
    161,003.70/241,311.15 = 82,077.30/x
  3. Step 3: Cross multiply
    161,003.70x = 241,311.15 × 82,077.30
  4. Step 4: Simplify right side
    161,003.70x = 19,806,167,651.90
  5. Step 5: Solve for x
    x = 19,806,167,651.90/161,003.70
  6. Step 6: Final answer
    x = 123,016.85

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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.