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Finding the Fourth Proportional to 202,907.62, 304,296.90 and 69,755.86

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Solution

The fourth proportional to 202,907.62, 304,296.90 and 69,755.86 is: 104,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,907.62 : 304,296.90 = 69,755.86 : x
  2. Step 2: Convert to fraction form
    202,907.62/304,296.90 = 69,755.86/x
  3. Step 3: Cross multiply
    202,907.62x = 304,296.90 × 69,755.86
  4. Step 4: Simplify right side
    202,907.62x = 21,226,491,954.83
  5. Step 5: Solve for x
    x = 21,226,491,954.83/202,907.62
  6. Step 6: Final answer
    x = 104,611.61

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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.