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Finding the Fourth Proportional to 70,892,808.30, 106,339,212.45 and 27,747,672.30

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Solution

The fourth proportional to 70,892,808.30, 106,339,212.45 and 27,747,672.30 is: 41,621,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,892,808.30 : 106,339,212.45 = 27,747,672.30 : x
  2. Step 2: Convert to fraction form
    70,892,808.30/106,339,212.45 = 27,747,672.30/x
  3. Step 3: Cross multiply
    70,892,808.30x = 106,339,212.45 × 27,747,672.30
  4. Step 4: Simplify right side
    70,892,808.30x = 2,950,665,619,702,680.50
  5. Step 5: Solve for x
    x = 2,950,665,619,702,680.50/70,892,808.30
  6. Step 6: Final answer
    x = 41,621,508.45

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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.