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Finding the Fourth Proportional to 494,012.52, 741,062.52 and 139,029.62

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Solution

The fourth proportional to 494,012.52, 741,062.52 and 139,029.62 is: 208,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,012.52 : 741,062.52 = 139,029.62 : x
  2. Step 2: Convert to fraction form
    494,012.52/741,062.52 = 139,029.62/x
  3. Step 3: Cross multiply
    494,012.52x = 741,062.52 × 139,029.62
  4. Step 4: Simplify right side
    494,012.52x = 103,029,636,846.53
  5. Step 5: Solve for x
    x = 103,029,636,846.53/494,012.52
  6. Step 6: Final answer
    x = 208,556.73

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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.