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Finding the Fourth Proportional to 222,162.48, 333,275.34 and 81,910.20

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Solution

The fourth proportional to 222,162.48, 333,275.34 and 81,910.20 is: 122,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,162.48 : 333,275.34 = 81,910.20 : x
  2. Step 2: Convert to fraction form
    222,162.48/333,275.34 = 81,910.20/x
  3. Step 3: Cross multiply
    222,162.48x = 333,275.34 × 81,910.20
  4. Step 4: Simplify right side
    222,162.48x = 27,298,649,754.47
  5. Step 5: Solve for x
    x = 27,298,649,754.47/222,162.48
  6. Step 6: Final answer
    x = 122,876.96

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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.