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Finding the Third Proportional to 72,537,710 and 159,325,690

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Solution

The third proportional to 72,537,710 and 159,325,690 is: 349,951,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,537,710 : 159,325,690 = 159,325,690 : x
  2. Step 2: Convert to fraction form
    72,537,710/159,325,690 = 159,325,690/x
  3. Step 3: Cross multiply
    72,537,710x = 159,325,690 × 159,325,690
  4. Step 4: Simplify right side
    72,537,710x = 25,384,675,493,976,100
  5. Step 5: Solve for x
    x = 25,384,675,493,976,100/72,537,710
  6. Step 6: Final answer
    x = 349,951,432.08

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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.