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Finding the Fourth Proportional to 329,949, 455,329.62 and 179,046

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Solution

The fourth proportional to 329,949, 455,329.62 and 179,046 is: 247,083.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,949 : 455,329.62 = 179,046 : x
  2. Step 2: Convert to fraction form
    329,949/455,329.62 = 179,046/x
  3. Step 3: Cross multiply
    329,949x = 455,329.62 × 179,046
  4. Step 4: Simplify right side
    329,949x = 81,524,947,142.52
  5. Step 5: Solve for x
    x = 81,524,947,142.52/329,949
  6. Step 6: Final answer
    x = 247,083.48

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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.