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Finding the Fourth Proportional to 355,101.20, 532,651.80 and 222,390.80

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Solution

The fourth proportional to 355,101.20, 532,651.80 and 222,390.80 is: 333,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,101.20 : 532,651.80 = 222,390.80 : x
  2. Step 2: Convert to fraction form
    355,101.20/532,651.80 = 222,390.80/x
  3. Step 3: Cross multiply
    355,101.20x = 532,651.80 × 222,390.80
  4. Step 4: Simplify right side
    355,101.20x = 118,456,859,923.44
  5. Step 5: Solve for x
    x = 118,456,859,923.44/355,101.20
  6. Step 6: Final answer
    x = 333,586.20

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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.