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Finding the Fourth Proportional to 222,491,876.80, 333,879,532.80 and 130,375,436.80

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Solution

The fourth proportional to 222,491,876.80, 333,879,532.80 and 130,375,436.80 is: 195,646,198.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,491,876.80 : 333,879,532.80 = 130,375,436.80 : x
  2. Step 2: Convert to fraction form
    222,491,876.80/333,879,532.80 = 130,375,436.80/x
  3. Step 3: Cross multiply
    222,491,876.80x = 333,879,532.80 × 130,375,436.80
  4. Step 4: Simplify right side
    222,491,876.80x = 43,529,689,927,379,928
  5. Step 5: Solve for x
    x = 43,529,689,927,379,928/222,491,876.80
  6. Step 6: Final answer
    x = 195,646,198.65

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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.