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Finding the Third Proportional to 187,996.13 and 391,482.75

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Solution

The third proportional to 187,996.13 and 391,482.75 is: 815,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,996.13 : 391,482.75 = 391,482.75 : x
  2. Step 2: Convert to fraction form
    187,996.13/391,482.75 = 391,482.75/x
  3. Step 3: Cross multiply
    187,996.13x = 391,482.75 × 391,482.75
  4. Step 4: Simplify right side
    187,996.13x = 153,258,743,547.56
  5. Step 5: Solve for x
    x = 153,258,743,547.56/187,996.13
  6. Step 6: Final answer
    x = 815,222.89

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.