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Finding the Third Proportional to 74,869.88 and 113,085

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Solution

The third proportional to 74,869.88 and 113,085 is: 170,805.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,869.88 : 113,085 = 113,085 : x
  2. Step 2: Convert to fraction form
    74,869.88/113,085 = 113,085/x
  3. Step 3: Cross multiply
    74,869.88x = 113,085 × 113,085
  4. Step 4: Simplify right side
    74,869.88x = 12,788,217,225
  5. Step 5: Solve for x
    x = 12,788,217,225/74,869.88
  6. Step 6: Final answer
    x = 170,805.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.