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Finding the Third Proportional to 166,915,980 and 358,512,948

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Solution

The third proportional to 166,915,980 and 358,512,948 is: 770,037,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,915,980 : 358,512,948 = 358,512,948 : x
  2. Step 2: Convert to fraction form
    166,915,980/358,512,948 = 358,512,948/x
  3. Step 3: Cross multiply
    166,915,980x = 358,512,948 × 358,512,948
  4. Step 4: Simplify right side
    166,915,980x = 128,531,533,883,650,704
  5. Step 5: Solve for x
    x = 128,531,533,883,650,704/166,915,980
  6. Step 6: Final answer
    x = 770,037,319.88

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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.