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Finding the Fourth Proportional to 158,796,979.20, 222,769,267.20 and 158,796,979.20

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Solution

The fourth proportional to 158,796,979.20, 222,769,267.20 and 158,796,979.20 is: 222,769,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,796,979.20 : 222,769,267.20 = 158,796,979.20 : x
  2. Step 2: Convert to fraction form
    158,796,979.20/222,769,267.20 = 158,796,979.20/x
  3. Step 3: Cross multiply
    158,796,979.20x = 222,769,267.20 × 158,796,979.20
  4. Step 4: Simplify right side
    158,796,979.20x = 35,375,086,689,957,636
  5. Step 5: Solve for x
    x = 35,375,086,689,957,636/158,796,979.20
  6. Step 6: Final answer
    x = 222,769,267.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.