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Finding the Fourth Proportional to 321,841.81, 482,805.09 and 119,410.36

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Solution

The fourth proportional to 321,841.81, 482,805.09 and 119,410.36 is: 179,131.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,841.81 : 482,805.09 = 119,410.36 : x
  2. Step 2: Convert to fraction form
    321,841.81/482,805.09 = 119,410.36/x
  3. Step 3: Cross multiply
    321,841.81x = 482,805.09 × 119,410.36
  4. Step 4: Simplify right side
    321,841.81x = 57,651,929,606.73
  5. Step 5: Solve for x
    x = 57,651,929,606.73/321,841.81
  6. Step 6: Final answer
    x = 179,131.26

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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.