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Finding the Fourth Proportional to 246,912.89, 370,391.21 and 69,421.44

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Solution

The fourth proportional to 246,912.89, 370,391.21 and 69,421.44 is: 104,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,912.89 : 370,391.21 = 69,421.44 : x
  2. Step 2: Convert to fraction form
    246,912.89/370,391.21 = 69,421.44/x
  3. Step 3: Cross multiply
    246,912.89x = 370,391.21 × 69,421.44
  4. Step 4: Simplify right side
    246,912.89x = 25,713,091,161.54
  5. Step 5: Solve for x
    x = 25,713,091,161.54/246,912.89
  6. Step 6: Final answer
    x = 104,138.31

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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.