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Finding the Third Proportional to 160,991,880 and 251,053,750

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Solution

The third proportional to 160,991,880 and 251,053,750 is: 391,497,915.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,991,880 : 251,053,750 = 251,053,750 : x
  2. Step 2: Convert to fraction form
    160,991,880/251,053,750 = 251,053,750/x
  3. Step 3: Cross multiply
    160,991,880x = 251,053,750 × 251,053,750
  4. Step 4: Simplify right side
    160,991,880x = 63,027,985,389,062,496
  5. Step 5: Solve for x
    x = 63,027,985,389,062,496/160,991,880
  6. Step 6: Final answer
    x = 391,497,915.23

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.