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Finding the Fourth Proportional to 234,874.88, 352,311.36 and 85,080.11

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Solution

The fourth proportional to 234,874.88, 352,311.36 and 85,080.11 is: 127,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,874.88 : 352,311.36 = 85,080.11 : x
  2. Step 2: Convert to fraction form
    234,874.88/352,311.36 = 85,080.11/x
  3. Step 3: Cross multiply
    234,874.88x = 352,311.36 × 85,080.11
  4. Step 4: Simplify right side
    234,874.88x = 29,974,687,501.49
  5. Step 5: Solve for x
    x = 29,974,687,501.49/234,874.88
  6. Step 6: Final answer
    x = 127,619.81

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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.