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Finding the Third Proportional to 71,967,439 and 155,424,556

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Solution

The third proportional to 71,967,439 and 155,424,556 is: 335,662,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,967,439 : 155,424,556 = 155,424,556 : x
  2. Step 2: Convert to fraction form
    71,967,439/155,424,556 = 155,424,556/x
  3. Step 3: Cross multiply
    71,967,439x = 155,424,556 × 155,424,556
  4. Step 4: Simplify right side
    71,967,439x = 24,156,792,607,797,136
  5. Step 5: Solve for x
    x = 24,156,792,607,797,136/71,967,439
  6. Step 6: Final answer
    x = 335,662,807.28

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.