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Finding the Third Proportional to 158,366,915 and 331,213,390

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Solution

The third proportional to 158,366,915 and 331,213,390 is: 692,709,772.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,366,915 : 331,213,390 = 331,213,390 : x
  2. Step 2: Convert to fraction form
    158,366,915/331,213,390 = 331,213,390/x
  3. Step 3: Cross multiply
    158,366,915x = 331,213,390 × 331,213,390
  4. Step 4: Simplify right side
    158,366,915x = 109,702,309,715,292,096
  5. Step 5: Solve for x
    x = 109,702,309,715,292,096/158,366,915
  6. Step 6: Final answer
    x = 692,709,772.84

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.