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Finding the Fourth Proportional to 329,943.78, 455,323.59 and 179,040.78

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Solution

The fourth proportional to 329,943.78, 455,323.59 and 179,040.78 is: 247,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,943.78 : 455,323.59 = 179,040.78 : x
  2. Step 2: Convert to fraction form
    329,943.78/455,323.59 = 179,040.78/x
  3. Step 3: Cross multiply
    329,943.78x = 455,323.59 × 179,040.78
  4. Step 4: Simplify right side
    329,943.78x = 81,521,490,706.00
  5. Step 5: Solve for x
    x = 81,521,490,706.00/329,943.78
  6. Step 6: Final answer
    x = 247,076.91

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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.