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Finding the Fourth Proportional to 325,603.01, 449,348.17 and 196,539.43

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Solution

The fourth proportional to 325,603.01, 449,348.17 and 196,539.43 is: 271,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,603.01 : 449,348.17 = 196,539.43 : x
  2. Step 2: Convert to fraction form
    325,603.01/449,348.17 = 196,539.43/x
  3. Step 3: Cross multiply
    325,603.01x = 449,348.17 × 196,539.43
  4. Step 4: Simplify right side
    325,603.01x = 88,314,631,097.28
  5. Step 5: Solve for x
    x = 88,314,631,097.28/325,603.01
  6. Step 6: Final answer
    x = 271,234.08

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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.