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Finding the Fourth Proportional to 404,837.37, 606,591.39 and 138,452.55

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Solution

The fourth proportional to 404,837.37, 606,591.39 and 138,452.55 is: 207,451.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,837.37 : 606,591.39 = 138,452.55 : x
  2. Step 2: Convert to fraction form
    404,837.37/606,591.39 = 138,452.55/x
  3. Step 3: Cross multiply
    404,837.37x = 606,591.39 × 138,452.55
  4. Step 4: Simplify right side
    404,837.37x = 83,984,124,753.54
  5. Step 5: Solve for x
    x = 83,984,124,753.54/404,837.37
  6. Step 6: Final answer
    x = 207,451.51

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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.