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Finding the Fourth Proportional to 374,067.44, 516,216.36 and 212,932.88

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Solution

The fourth proportional to 374,067.44, 516,216.36 and 212,932.88 is: 293,849.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,067.44 : 516,216.36 = 212,932.88 : x
  2. Step 2: Convert to fraction form
    374,067.44/516,216.36 = 212,932.88/x
  3. Step 3: Cross multiply
    374,067.44x = 516,216.36 × 212,932.88
  4. Step 4: Simplify right side
    374,067.44x = 109,919,436,237.92
  5. Step 5: Solve for x
    x = 109,919,436,237.92/374,067.44
  6. Step 6: Final answer
    x = 293,849.25

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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.