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Finding the Third Proportional to 71,924 and 156,970

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Solution

The third proportional to 71,924 and 156,970 is: 342,578.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,924 : 156,970 = 156,970 : x
  2. Step 2: Convert to fraction form
    71,924/156,970 = 156,970/x
  3. Step 3: Cross multiply
    71,924x = 156,970 × 156,970
  4. Step 4: Simplify right side
    71,924x = 24,639,580,900
  5. Step 5: Solve for x
    x = 24,639,580,900/71,924
  6. Step 6: Final answer
    x = 342,578.01

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.