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Finding the Fourth Proportional to 225,067.40, 337,389.90 and 84,920.20

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Solution

The fourth proportional to 225,067.40, 337,389.90 and 84,920.20 is: 127,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,067.40 : 337,389.90 = 84,920.20 : x
  2. Step 2: Convert to fraction form
    225,067.40/337,389.90 = 84,920.20/x
  3. Step 3: Cross multiply
    225,067.40x = 337,389.90 × 84,920.20
  4. Step 4: Simplify right side
    225,067.40x = 28,651,217,785.98
  5. Step 5: Solve for x
    x = 28,651,217,785.98/225,067.40
  6. Step 6: Final answer
    x = 127,300.61

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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.