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Finding the Fourth Proportional to 352,036.62, 485,809.92 and 196,988.04

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Solution

The fourth proportional to 352,036.62, 485,809.92 and 196,988.04 is: 271,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,036.62 : 485,809.92 = 196,988.04 : x
  2. Step 2: Convert to fraction form
    352,036.62/485,809.92 = 196,988.04/x
  3. Step 3: Cross multiply
    352,036.62x = 485,809.92 × 196,988.04
  4. Step 4: Simplify right side
    352,036.62x = 95,698,743,953.36
  5. Step 5: Solve for x
    x = 95,698,743,953.36/352,036.62
  6. Step 6: Final answer
    x = 271,843.15

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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.