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Finding the Third Proportional to 74,680 and 158,103

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Solution

The third proportional to 74,680 and 158,103 is: 334,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,680 : 158,103 = 158,103 : x
  2. Step 2: Convert to fraction form
    74,680/158,103 = 158,103/x
  3. Step 3: Cross multiply
    74,680x = 158,103 × 158,103
  4. Step 4: Simplify right side
    74,680x = 24,996,558,609
  5. Step 5: Solve for x
    x = 24,996,558,609/74,680
  6. Step 6: Final answer
    x = 334,715.57

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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.