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Finding the Third Proportional to 118,687,720 and 250,128,080

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Solution

The third proportional to 118,687,720 and 250,128,080 is: 527,131,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,687,720 : 250,128,080 = 250,128,080 : x
  2. Step 2: Convert to fraction form
    118,687,720/250,128,080 = 250,128,080/x
  3. Step 3: Cross multiply
    118,687,720x = 250,128,080 × 250,128,080
  4. Step 4: Simplify right side
    118,687,720x = 62,564,056,404,486,400
  5. Step 5: Solve for x
    x = 62,564,056,404,486,400/118,687,720
  6. Step 6: Final answer
    x = 527,131,672.97

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.