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Finding the Fourth Proportional to 373,647.27, 515,644.63 and 212,525.54

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Solution

The fourth proportional to 373,647.27, 515,644.63 and 212,525.54 is: 293,291.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,647.27 : 515,644.63 = 212,525.54 : x
  2. Step 2: Convert to fraction form
    373,647.27/515,644.63 = 212,525.54/x
  3. Step 3: Cross multiply
    373,647.27x = 515,644.63 × 212,525.54
  4. Step 4: Simplify right side
    373,647.27x = 109,587,653,438.85
  5. Step 5: Solve for x
    x = 109,587,653,438.85/373,647.27
  6. Step 6: Final answer
    x = 293,291.73

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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.