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Finding the Fourth Proportional to 234,791,998.80, 352,187,998.20 and 208,963,966.20

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Solution

The fourth proportional to 234,791,998.80, 352,187,998.20 and 208,963,966.20 is: 313,445,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,791,998.80 : 352,187,998.20 = 208,963,966.20 : x
  2. Step 2: Convert to fraction form
    234,791,998.80/352,187,998.20 = 208,963,966.20/x
  3. Step 3: Cross multiply
    234,791,998.80x = 352,187,998.20 × 208,963,966.20
  4. Step 4: Simplify right side
    234,791,998.80x = 73,594,600,951,910,448
  5. Step 5: Solve for x
    x = 73,594,600,951,910,448/234,791,998.80
  6. Step 6: Final answer
    x = 313,445,949.30

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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.