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Finding the Third Proportional to 139,308,677.44 and 300,430,991.25

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Solution

The third proportional to 139,308,677.44 and 300,430,991.25 is: 647,904,941.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,308,677.44 : 300,430,991.25 = 300,430,991.25 : x
  2. Step 2: Convert to fraction form
    139,308,677.44/300,430,991.25 = 300,430,991.25/x
  3. Step 3: Cross multiply
    139,308,677.44x = 300,430,991.25 × 300,430,991.25
  4. Step 4: Simplify right side
    139,308,677.44x = 90,258,780,503,457,584
  5. Step 5: Solve for x
    x = 90,258,780,503,457,584/139,308,677.44
  6. Step 6: Final answer
    x = 647,904,941.48

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.