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Finding the Third Proportional to 127,890,038 and 281,289,244

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Solution

The third proportional to 127,890,038 and 281,289,244 is: 618,684,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,890,038 : 281,289,244 = 281,289,244 : x
  2. Step 2: Convert to fraction form
    127,890,038/281,289,244 = 281,289,244/x
  3. Step 3: Cross multiply
    127,890,038x = 281,289,244 × 281,289,244
  4. Step 4: Simplify right side
    127,890,038x = 79,123,638,790,091,536
  5. Step 5: Solve for x
    x = 79,123,638,790,091,536/127,890,038
  6. Step 6: Final answer
    x = 618,684,926.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.