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Finding the Fourth Proportional to 239,197,815.60, 335,103,690 and 239,197,815.60

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Solution

The fourth proportional to 239,197,815.60, 335,103,690 and 239,197,815.60 is: 335,103,690

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,197,815.60 : 335,103,690 = 239,197,815.60 : x
  2. Step 2: Convert to fraction form
    239,197,815.60/335,103,690 = 239,197,815.60/x
  3. Step 3: Cross multiply
    239,197,815.60x = 335,103,690 × 239,197,815.60
  4. Step 4: Simplify right side
    239,197,815.60x = 80,156,070,647,499,568
  5. Step 5: Solve for x
    x = 80,156,070,647,499,568/239,197,815.60
  6. Step 6: Final answer
    x = 335,103,690

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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.