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Finding the Third Proportional to 75,815,220 and 108,051,918

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Solution

The third proportional to 75,815,220 and 108,051,918 is: 153,995,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,815,220 : 108,051,918 = 108,051,918 : x
  2. Step 2: Convert to fraction form
    75,815,220/108,051,918 = 108,051,918/x
  3. Step 3: Cross multiply
    75,815,220x = 108,051,918 × 108,051,918
  4. Step 4: Simplify right side
    75,815,220x = 11,675,216,983,478,724
  5. Step 5: Solve for x
    x = 11,675,216,983,478,724/75,815,220
  6. Step 6: Final answer
    x = 153,995,688.25

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.