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Finding the Third Proportional to 74,282 and 158,930

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Solution

The third proportional to 74,282 and 158,930 is: 340,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,282 : 158,930 = 158,930 : x
  2. Step 2: Convert to fraction form
    74,282/158,930 = 158,930/x
  3. Step 3: Cross multiply
    74,282x = 158,930 × 158,930
  4. Step 4: Simplify right side
    74,282x = 25,258,744,900
  5. Step 5: Solve for x
    x = 25,258,744,900/74,282
  6. Step 6: Final answer
    x = 340,038.57

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.