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Finding the Fourth Proportional to 225,818.83, 338,620.99 and 131,078.25

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Solution

The fourth proportional to 225,818.83, 338,620.99 and 131,078.25 is: 196,555.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,818.83 : 338,620.99 = 131,078.25 : x
  2. Step 2: Convert to fraction form
    225,818.83/338,620.99 = 131,078.25/x
  3. Step 3: Cross multiply
    225,818.83x = 338,620.99 × 131,078.25
  4. Step 4: Simplify right side
    225,818.83x = 44,385,846,782.47
  5. Step 5: Solve for x
    x = 44,385,846,782.47/225,818.83
  6. Step 6: Final answer
    x = 196,555.12

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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.