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Finding the Third Proportional to 172,519,690.50 and 371,345,722.50

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Solution

The third proportional to 172,519,690.50 and 371,345,722.50 is: 799,315,401.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,519,690.50 : 371,345,722.50 = 371,345,722.50 : x
  2. Step 2: Convert to fraction form
    172,519,690.50/371,345,722.50 = 371,345,722.50/x
  3. Step 3: Cross multiply
    172,519,690.50x = 371,345,722.50 × 371,345,722.50
  4. Step 4: Simplify right side
    172,519,690.50x = 137,897,645,619,047,008
  5. Step 5: Solve for x
    x = 137,897,645,619,047,008/172,519,690.50
  6. Step 6: Final answer
    x = 799,315,401.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.