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Finding the Fourth Proportional to 373,647.11, 515,644.37 and 212,525.33

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Solution

The fourth proportional to 373,647.11, 515,644.37 and 212,525.33 is: 293,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,647.11 : 515,644.37 = 212,525.33 : x
  2. Step 2: Convert to fraction form
    373,647.11/515,644.37 = 212,525.33/x
  3. Step 3: Cross multiply
    373,647.11x = 515,644.37 × 212,525.33
  4. Step 4: Simplify right side
    373,647.11x = 109,587,489,896.89
  5. Step 5: Solve for x
    x = 109,587,489,896.89/373,647.11
  6. Step 6: Final answer
    x = 293,291.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.