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Finding the Fourth Proportional to 161,940,620.40, 242,910,930.60 and 161,940,620.40

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Solution

The fourth proportional to 161,940,620.40, 242,910,930.60 and 161,940,620.40 is: 242,910,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,940,620.40 : 242,910,930.60 = 161,940,620.40 : x
  2. Step 2: Convert to fraction form
    161,940,620.40/242,910,930.60 = 161,940,620.40/x
  3. Step 3: Cross multiply
    161,940,620.40x = 242,910,930.60 × 161,940,620.40
  4. Step 4: Simplify right side
    161,940,620.40x = 39,337,146,803,305,344
  5. Step 5: Solve for x
    x = 39,337,146,803,305,344/161,940,620.40
  6. Step 6: Final answer
    x = 242,910,930.60

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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.