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Finding the Fourth Proportional to 234,080.70, 351,121.05 and 206,961.90

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Solution

The fourth proportional to 234,080.70, 351,121.05 and 206,961.90 is: 310,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,080.70 : 351,121.05 = 206,961.90 : x
  2. Step 2: Convert to fraction form
    234,080.70/351,121.05 = 206,961.90/x
  3. Step 3: Cross multiply
    234,080.70x = 351,121.05 × 206,961.90
  4. Step 4: Simplify right side
    234,080.70x = 72,668,679,638.00
  5. Step 5: Solve for x
    x = 72,668,679,638.00/234,080.70
  6. Step 6: Final answer
    x = 310,442.85

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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.