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Finding the Fourth Proportional to 322,661.82, 445,255 and 179,418.79

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Solution

The fourth proportional to 322,661.82, 445,255 and 179,418.79 is: 247,587.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,661.82 : 445,255 = 179,418.79 : x
  2. Step 2: Convert to fraction form
    322,661.82/445,255 = 179,418.79/x
  3. Step 3: Cross multiply
    322,661.82x = 445,255 × 179,418.79
  4. Step 4: Simplify right side
    322,661.82x = 79,887,113,341.45
  5. Step 5: Solve for x
    x = 79,887,113,341.45/322,661.82
  6. Step 6: Final answer
    x = 247,587.75

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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.