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Finding the Fourth Proportional to 259,469.43, 358,067.66 and 140,237.43

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Solution

The fourth proportional to 259,469.43, 358,067.66 and 140,237.43 is: 193,527.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,469.43 : 358,067.66 = 140,237.43 : x
  2. Step 2: Convert to fraction form
    259,469.43/358,067.66 = 140,237.43/x
  3. Step 3: Cross multiply
    259,469.43x = 358,067.66 × 140,237.43
  4. Step 4: Simplify right side
    259,469.43x = 50,214,487,703.33
  5. Step 5: Solve for x
    x = 50,214,487,703.33/259,469.43
  6. Step 6: Final answer
    x = 193,527.57

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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.