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Finding the Third Proportional to 74,234 and 156,748

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Solution

The third proportional to 74,234 and 156,748 is: 330,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,234 : 156,748 = 156,748 : x
  2. Step 2: Convert to fraction form
    74,234/156,748 = 156,748/x
  3. Step 3: Cross multiply
    74,234x = 156,748 × 156,748
  4. Step 4: Simplify right side
    74,234x = 24,569,935,504
  5. Step 5: Solve for x
    x = 24,569,935,504/74,234
  6. Step 6: Final answer
    x = 330,979.54

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.