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Finding the Third Proportional to 74,350,872 and 161,053,920

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Solution

The third proportional to 74,350,872 and 161,053,920 is: 348,864,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,350,872 : 161,053,920 = 161,053,920 : x
  2. Step 2: Convert to fraction form
    74,350,872/161,053,920 = 161,053,920/x
  3. Step 3: Cross multiply
    74,350,872x = 161,053,920 × 161,053,920
  4. Step 4: Simplify right side
    74,350,872x = 25,938,365,147,366,400
  5. Step 5: Solve for x
    x = 25,938,365,147,366,400/74,350,872
  6. Step 6: Final answer
    x = 348,864,303.13

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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.