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Finding the Third Proportional to 42,920.75 and 93,230

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Solution

The third proportional to 42,920.75 and 93,230 is: 202,508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,920.75 : 93,230 = 93,230 : x
  2. Step 2: Convert to fraction form
    42,920.75/93,230 = 93,230/x
  3. Step 3: Cross multiply
    42,920.75x = 93,230 × 93,230
  4. Step 4: Simplify right side
    42,920.75x = 8,691,832,900
  5. Step 5: Solve for x
    x = 8,691,832,900/42,920.75
  6. Step 6: Final answer
    x = 202,508.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.