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Finding the Third Proportional to 73,339,416 and 155,421,320

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Solution

The third proportional to 73,339,416 and 155,421,320 is: 329,369,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,339,416 : 155,421,320 = 155,421,320 : x
  2. Step 2: Convert to fraction form
    73,339,416/155,421,320 = 155,421,320/x
  3. Step 3: Cross multiply
    73,339,416x = 155,421,320 × 155,421,320
  4. Step 4: Simplify right side
    73,339,416x = 24,155,786,710,542,400
  5. Step 5: Solve for x
    x = 24,155,786,710,542,400/73,339,416
  6. Step 6: Final answer
    x = 329,369,771.78

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.