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Finding the Fourth Proportional to 45,518,874.60, 68,278,311.90 and 45,518,874.60

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Solution

The fourth proportional to 45,518,874.60, 68,278,311.90 and 45,518,874.60 is: 68,278,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,518,874.60 : 68,278,311.90 = 45,518,874.60 : x
  2. Step 2: Convert to fraction form
    45,518,874.60/68,278,311.90 = 45,518,874.60/x
  3. Step 3: Cross multiply
    45,518,874.60x = 68,278,311.90 × 45,518,874.60
  4. Step 4: Simplify right side
    45,518,874.60x = 3,107,951,917,275,788
  5. Step 5: Solve for x
    x = 3,107,951,917,275,788/45,518,874.60
  6. Step 6: Final answer
    x = 68,278,311.90

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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.