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Finding the Fourth Proportional to 323,369,965.80, 485,059,095.90 and 107,959,213.80

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Solution

The fourth proportional to 323,369,965.80, 485,059,095.90 and 107,959,213.80 is: 161,940,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,369,965.80 : 485,059,095.90 = 107,959,213.80 : x
  2. Step 2: Convert to fraction form
    323,369,965.80/485,059,095.90 = 107,959,213.80/x
  3. Step 3: Cross multiply
    323,369,965.80x = 485,059,095.90 × 107,959,213.80
  4. Step 4: Simplify right side
    323,369,965.80x = 52,366,598,639,902,800
  5. Step 5: Solve for x
    x = 52,366,598,639,902,800/323,369,965.80
  6. Step 6: Final answer
    x = 161,940,205.27

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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.