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Finding the Fourth Proportional to 323,012.81, 445,772.36 and 179,782.03

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Solution

The fourth proportional to 323,012.81, 445,772.36 and 179,782.03 is: 248,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,012.81 : 445,772.36 = 179,782.03 : x
  2. Step 2: Convert to fraction form
    323,012.81/445,772.36 = 179,782.03/x
  3. Step 3: Cross multiply
    323,012.81x = 445,772.36 × 179,782.03
  4. Step 4: Simplify right side
    323,012.81x = 80,141,860,805.36
  5. Step 5: Solve for x
    x = 80,141,860,805.36/323,012.81
  6. Step 6: Final answer
    x = 248,107.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.