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Finding the Fourth Proportional to 120,843.56, 181,264.19 and 73,471.73

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Solution

The fourth proportional to 120,843.56, 181,264.19 and 73,471.73 is: 110,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,843.56 : 181,264.19 = 73,471.73 : x
  2. Step 2: Convert to fraction form
    120,843.56/181,264.19 = 73,471.73/x
  3. Step 3: Cross multiply
    120,843.56x = 181,264.19 × 73,471.73
  4. Step 4: Simplify right side
    120,843.56x = 13,317,794,263.19
  5. Step 5: Solve for x
    x = 13,317,794,263.19/120,843.56
  6. Step 6: Final answer
    x = 110,206.90

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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.