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Finding the Fourth Proportional to 226,640.25, 312,770.43 and 124,660.44

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Solution

The fourth proportional to 226,640.25, 312,770.43 and 124,660.44 is: 172,035.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,640.25 : 312,770.43 = 124,660.44 : x
  2. Step 2: Convert to fraction form
    226,640.25/312,770.43 = 124,660.44/x
  3. Step 3: Cross multiply
    226,640.25x = 312,770.43 × 124,660.44
  4. Step 4: Simplify right side
    226,640.25x = 38,990,099,422.79
  5. Step 5: Solve for x
    x = 38,990,099,422.79/226,640.25
  6. Step 6: Final answer
    x = 172,035.19

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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.