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Finding the Fourth Proportional to 230,375.78, 345,540.30 and 61,874.22

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Solution

The fourth proportional to 230,375.78, 345,540.30 and 61,874.22 is: 92,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,375.78 : 345,540.30 = 61,874.22 : x
  2. Step 2: Convert to fraction form
    230,375.78/345,540.30 = 61,874.22/x
  3. Step 3: Cross multiply
    230,375.78x = 345,540.30 × 61,874.22
  4. Step 4: Simplify right side
    230,375.78x = 21,380,036,541.07
  5. Step 5: Solve for x
    x = 21,380,036,541.07/230,375.78
  6. Step 6: Final answer
    x = 92,805.05

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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.