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Finding the Fourth Proportional to 222,635.22, 307,234.22 and 120,660.87

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Solution

The fourth proportional to 222,635.22, 307,234.22 and 120,660.87 is: 166,510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,635.22 : 307,234.22 = 120,660.87 : x
  2. Step 2: Convert to fraction form
    222,635.22/307,234.22 = 120,660.87/x
  3. Step 3: Cross multiply
    222,635.22x = 307,234.22 × 120,660.87
  4. Step 4: Simplify right side
    222,635.22x = 37,071,148,827.80
  5. Step 5: Solve for x
    x = 37,071,148,827.80/222,635.22
  6. Step 6: Final answer
    x = 166,510.71

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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.