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Finding the Third Proportional to 118,908,072 and 261,199,551

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Solution

The third proportional to 118,908,072 and 261,199,551 is: 573,764,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,908,072 : 261,199,551 = 261,199,551 : x
  2. Step 2: Convert to fraction form
    118,908,072/261,199,551 = 261,199,551/x
  3. Step 3: Cross multiply
    118,908,072x = 261,199,551 × 261,199,551
  4. Step 4: Simplify right side
    118,908,072x = 68,225,205,442,601,600
  5. Step 5: Solve for x
    x = 68,225,205,442,601,600/118,908,072
  6. Step 6: Final answer
    x = 573,764,289.46

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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.