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Finding the Fourth Proportional to 220,855.56, 304,773.96 and 122,738.46

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Solution

The fourth proportional to 220,855.56, 304,773.96 and 122,738.46 is: 169,375.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,855.56 : 304,773.96 = 122,738.46 : x
  2. Step 2: Convert to fraction form
    220,855.56/304,773.96 = 122,738.46/x
  3. Step 3: Cross multiply
    220,855.56x = 304,773.96 × 122,738.46
  4. Step 4: Simplify right side
    220,855.56x = 37,407,486,498.50
  5. Step 5: Solve for x
    x = 37,407,486,498.50/220,855.56
  6. Step 6: Final answer
    x = 169,375.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.