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Finding the Third Proportional to 71,339,421 and 109,311,948

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Solution

The third proportional to 71,339,421 and 109,311,948 is: 167,496,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,339,421 : 109,311,948 = 109,311,948 : x
  2. Step 2: Convert to fraction form
    71,339,421/109,311,948 = 109,311,948/x
  3. Step 3: Cross multiply
    71,339,421x = 109,311,948 × 109,311,948
  4. Step 4: Simplify right side
    71,339,421x = 11,949,101,975,554,704
  5. Step 5: Solve for x
    x = 11,949,101,975,554,704/71,339,421
  6. Step 6: Final answer
    x = 167,496,481.02

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.