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Finding the Third Proportional to 74,718,940 and 162,191,780

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Solution

The third proportional to 74,718,940 and 162,191,780 is: 352,068,344.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,718,940 : 162,191,780 = 162,191,780 : x
  2. Step 2: Convert to fraction form
    74,718,940/162,191,780 = 162,191,780/x
  3. Step 3: Cross multiply
    74,718,940x = 162,191,780 × 162,191,780
  4. Step 4: Simplify right side
    74,718,940x = 26,306,173,499,568,400
  5. Step 5: Solve for x
    x = 26,306,173,499,568,400/74,718,940
  6. Step 6: Final answer
    x = 352,068,344.38

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.