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Finding the Third Proportional to 118,237,489 and 276,256,138

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Solution

The third proportional to 118,237,489 and 276,256,138 is: 645,459,020.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,237,489 : 276,256,138 = 276,256,138 : x
  2. Step 2: Convert to fraction form
    118,237,489/276,256,138 = 276,256,138/x
  3. Step 3: Cross multiply
    118,237,489x = 276,256,138 × 276,256,138
  4. Step 4: Simplify right side
    118,237,489x = 76,317,453,782,675,040
  5. Step 5: Solve for x
    x = 76,317,453,782,675,040/118,237,489
  6. Step 6: Final answer
    x = 645,459,020.05

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.