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Finding the Third Proportional to 136,930,553 and 212,102,154

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Solution

The third proportional to 136,930,553 and 212,102,154 is: 328,541,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,930,553 : 212,102,154 = 212,102,154 : x
  2. Step 2: Convert to fraction form
    136,930,553/212,102,154 = 212,102,154/x
  3. Step 3: Cross multiply
    136,930,553x = 212,102,154 × 212,102,154
  4. Step 4: Simplify right side
    136,930,553x = 44,987,323,731,439,712
  5. Step 5: Solve for x
    x = 44,987,323,731,439,712/136,930,553
  6. Step 6: Final answer
    x = 328,541,167.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.