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Finding the Third Proportional to 79,768,279 and 173,512,784

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Solution

The third proportional to 79,768,279 and 173,512,784 is: 377,426,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768,279 : 173,512,784 = 173,512,784 : x
  2. Step 2: Convert to fraction form
    79,768,279/173,512,784 = 173,512,784/x
  3. Step 3: Cross multiply
    79,768,279x = 173,512,784 × 173,512,784
  4. Step 4: Simplify right side
    79,768,279x = 30,106,686,211,430,656
  5. Step 5: Solve for x
    x = 30,106,686,211,430,656/79,768,279
  6. Step 6: Final answer
    x = 377,426,799.08

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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.