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Finding the Fourth Proportional to 248,859.20, 373,288.80 and 225,531.20

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Solution

The fourth proportional to 248,859.20, 373,288.80 and 225,531.20 is: 338,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,859.20 : 373,288.80 = 225,531.20 : x
  2. Step 2: Convert to fraction form
    248,859.20/373,288.80 = 225,531.20/x
  3. Step 3: Cross multiply
    248,859.20x = 373,288.80 × 225,531.20
  4. Step 4: Simplify right side
    248,859.20x = 84,188,271,010.56
  5. Step 5: Solve for x
    x = 84,188,271,010.56/248,859.20
  6. Step 6: Final answer
    x = 338,296.80

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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.