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Finding the Fourth Proportional to 5,451,215.70, 8,159,108.85 and 5,451,215.70

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Solution

The fourth proportional to 5,451,215.70, 8,159,108.85 and 5,451,215.70 is: 8,159,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451,215.70 : 8,159,108.85 = 5,451,215.70 : x
  2. Step 2: Convert to fraction form
    5,451,215.70/8,159,108.85 = 5,451,215.70/x
  3. Step 3: Cross multiply
    5,451,215.70x = 8,159,108.85 × 5,451,215.70
  4. Step 4: Simplify right side
    5,451,215.70x = 44,477,062,261,128.95
  5. Step 5: Solve for x
    x = 44,477,062,261,128.95/5,451,215.70
  6. Step 6: Final answer
    x = 8,159,108.85

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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.