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Finding the Fourth Proportional to 202,751,998.80, 304,127,998.20 and 159,753,829.20

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Solution

The fourth proportional to 202,751,998.80, 304,127,998.20 and 159,753,829.20 is: 239,630,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,751,998.80 : 304,127,998.20 = 159,753,829.20 : x
  2. Step 2: Convert to fraction form
    202,751,998.80/304,127,998.20 = 159,753,829.20/x
  3. Step 3: Cross multiply
    202,751,998.80x = 304,127,998.20 × 159,753,829.20
  4. Step 4: Simplify right side
    202,751,998.80x = 48,585,612,279,380,704
  5. Step 5: Solve for x
    x = 48,585,612,279,380,704/202,751,998.80
  6. Step 6: Final answer
    x = 239,630,743.80

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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.