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Finding the Third Proportional to 118,098,872 and 257,687,690

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Solution

The third proportional to 118,098,872 and 257,687,690 is: 562,265,705.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,872 : 257,687,690 = 257,687,690 : x
  2. Step 2: Convert to fraction form
    118,098,872/257,687,690 = 257,687,690/x
  3. Step 3: Cross multiply
    118,098,872x = 257,687,690 × 257,687,690
  4. Step 4: Simplify right side
    118,098,872x = 66,402,945,577,536,096
  5. Step 5: Solve for x
    x = 66,402,945,577,536,096/118,098,872
  6. Step 6: Final answer
    x = 562,265,705.45

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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.