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Finding the Third Proportional to 161,931,778 and 352,615,310

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Solution

The third proportional to 161,931,778 and 352,615,310 is: 767,839,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,931,778 : 352,615,310 = 352,615,310 : x
  2. Step 2: Convert to fraction form
    161,931,778/352,615,310 = 352,615,310/x
  3. Step 3: Cross multiply
    161,931,778x = 352,615,310 × 352,615,310
  4. Step 4: Simplify right side
    161,931,778x = 124,337,556,846,396,096
  5. Step 5: Solve for x
    x = 124,337,556,846,396,096/161,931,778
  6. Step 6: Final answer
    x = 767,839,138.07

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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.