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Finding the Fourth Proportional to 225,870.20, 338,805.30 and 166,821.20

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Solution

The fourth proportional to 225,870.20, 338,805.30 and 166,821.20 is: 250,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,870.20 : 338,805.30 = 166,821.20 : x
  2. Step 2: Convert to fraction form
    225,870.20/338,805.30 = 166,821.20/x
  3. Step 3: Cross multiply
    225,870.20x = 338,805.30 × 166,821.20
  4. Step 4: Simplify right side
    225,870.20x = 56,519,906,712.36
  5. Step 5: Solve for x
    x = 56,519,906,712.36/225,870.20
  6. Step 6: Final answer
    x = 250,231.80

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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.