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Finding the Fourth Proportional to 329,966.31, 455,353.51 and 179,063.31

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Solution

The fourth proportional to 329,966.31, 455,353.51 and 179,063.31 is: 247,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,966.31 : 455,353.51 = 179,063.31 : x
  2. Step 2: Convert to fraction form
    329,966.31/455,353.51 = 179,063.31/x
  3. Step 3: Cross multiply
    329,966.31x = 455,353.51 × 179,063.31
  4. Step 4: Simplify right side
    329,966.31x = 81,537,106,720.72
  5. Step 5: Solve for x
    x = 81,537,106,720.72/329,966.31
  6. Step 6: Final answer
    x = 247,107.37

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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.