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Finding the Fourth Proportional to 329,568.09, 494,371.41 and 127,165.28

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Solution

The fourth proportional to 329,568.09, 494,371.41 and 127,165.28 is: 190,755.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,568.09 : 494,371.41 = 127,165.28 : x
  2. Step 2: Convert to fraction form
    329,568.09/494,371.41 = 127,165.28/x
  3. Step 3: Cross multiply
    329,568.09x = 494,371.41 × 127,165.28
  4. Step 4: Simplify right side
    329,568.09x = 62,866,878,002.96
  5. Step 5: Solve for x
    x = 62,866,878,002.96/329,568.09
  6. Step 6: Final answer
    x = 190,755.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.