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Finding the Fourth Proportional to 404,245.81, 606,192.67 and 115,993.95

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Solution

The fourth proportional to 404,245.81, 606,192.67 and 115,993.95 is: 173,940.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,245.81 : 606,192.67 = 115,993.95 : x
  2. Step 2: Convert to fraction form
    404,245.81/606,192.67 = 115,993.95/x
  3. Step 3: Cross multiply
    404,245.81x = 606,192.67 × 115,993.95
  4. Step 4: Simplify right side
    404,245.81x = 70,314,682,254.35
  5. Step 5: Solve for x
    x = 70,314,682,254.35/404,245.81
  6. Step 6: Final answer
    x = 173,940.41

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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.