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Finding the Third Proportional to 71,168,679 and 155,387,178

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Solution

The third proportional to 71,168,679 and 155,387,178 is: 339,266,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,168,679 : 155,387,178 = 155,387,178 : x
  2. Step 2: Convert to fraction form
    71,168,679/155,387,178 = 155,387,178/x
  3. Step 3: Cross multiply
    71,168,679x = 155,387,178 × 155,387,178
  4. Step 4: Simplify right side
    71,168,679x = 24,145,175,086,803,684
  5. Step 5: Solve for x
    x = 24,145,175,086,803,684/71,168,679
  6. Step 6: Final answer
    x = 339,266,871.69

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.