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Finding the Third Proportional to 80,360,280 and 174,420,000

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Solution

The third proportional to 80,360,280 and 174,420,000 is: 378,574,295.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,360,280 : 174,420,000 = 174,420,000 : x
  2. Step 2: Convert to fraction form
    80,360,280/174,420,000 = 174,420,000/x
  3. Step 3: Cross multiply
    80,360,280x = 174,420,000 × 174,420,000
  4. Step 4: Simplify right side
    80,360,280x = 30,422,336,400,000,000
  5. Step 5: Solve for x
    x = 30,422,336,400,000,000/80,360,280
  6. Step 6: Final answer
    x = 378,574,295.66

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.