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Finding the Third Proportional to 89,579,520 and 196,515,072

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Solution

The third proportional to 89,579,520 and 196,515,072 is: 431,104,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,579,520 : 196,515,072 = 196,515,072 : x
  2. Step 2: Convert to fraction form
    89,579,520/196,515,072 = 196,515,072/x
  3. Step 3: Cross multiply
    89,579,520x = 196,515,072 × 196,515,072
  4. Step 4: Simplify right side
    89,579,520x = 38,618,173,523,165,184
  5. Step 5: Solve for x
    x = 38,618,173,523,165,184/89,579,520
  6. Step 6: Final answer
    x = 431,104,939.20

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.