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Finding the Fourth Proportional to 252,161.52, 378,297.63 and 74,682.42

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Solution

The fourth proportional to 252,161.52, 378,297.63 and 74,682.42 is: 112,040.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,161.52 : 378,297.63 = 74,682.42 : x
  2. Step 2: Convert to fraction form
    252,161.52/378,297.63 = 74,682.42/x
  3. Step 3: Cross multiply
    252,161.52x = 378,297.63 × 74,682.42
  4. Step 4: Simplify right side
    252,161.52x = 28,252,182,488.66
  5. Step 5: Solve for x
    x = 28,252,182,488.66/252,161.52
  6. Step 6: Final answer
    x = 112,040.02

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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.