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Finding the Fourth Proportional to 322,925.22, 445,636.80 and 179,694.49

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Solution

The fourth proportional to 322,925.22, 445,636.80 and 179,694.49 is: 247,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,925.22 : 445,636.80 = 179,694.49 : x
  2. Step 2: Convert to fraction form
    322,925.22/445,636.80 = 179,694.49/x
  3. Step 3: Cross multiply
    322,925.22x = 445,636.80 × 179,694.49
  4. Step 4: Simplify right side
    322,925.22x = 80,078,477,501.23
  5. Step 5: Solve for x
    x = 80,078,477,501.23/322,925.22
  6. Step 6: Final answer
    x = 247,978.39

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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.