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Finding the Third Proportional to 74,070 and 157,374

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Solution

The third proportional to 74,070 and 157,374 is: 334,367.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,070 : 157,374 = 157,374 : x
  2. Step 2: Convert to fraction form
    74,070/157,374 = 157,374/x
  3. Step 3: Cross multiply
    74,070x = 157,374 × 157,374
  4. Step 4: Simplify right side
    74,070x = 24,766,575,876
  5. Step 5: Solve for x
    x = 24,766,575,876/74,070
  6. Step 6: Final answer
    x = 334,367.16

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.