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Finding the Fourth Proportional to 222,843.79, 307,521.66 and 120,867.63

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Solution

The fourth proportional to 222,843.79, 307,521.66 and 120,867.63 is: 166,795.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,843.79 : 307,521.66 = 120,867.63 : x
  2. Step 2: Convert to fraction form
    222,843.79/307,521.66 = 120,867.63/x
  3. Step 3: Cross multiply
    222,843.79x = 307,521.66 × 120,867.63
  4. Step 4: Simplify right side
    222,843.79x = 37,169,414,217.87
  5. Step 5: Solve for x
    x = 37,169,414,217.87/222,843.79
  6. Step 6: Final answer
    x = 166,795.83

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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.