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Finding the Fourth Proportional to 403,843.77, 605,648.97 and 137,598.39

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Solution

The fourth proportional to 403,843.77, 605,648.97 and 137,598.39 is: 206,357.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,843.77 : 605,648.97 = 137,598.39 : x
  2. Step 2: Convert to fraction form
    403,843.77/605,648.97 = 137,598.39/x
  3. Step 3: Cross multiply
    403,843.77x = 605,648.97 × 137,598.39
  4. Step 4: Simplify right side
    403,843.77x = 83,336,323,177.16
  5. Step 5: Solve for x
    x = 83,336,323,177.16/403,843.77
  6. Step 6: Final answer
    x = 206,357.83

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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.