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Finding the Third Proportional to 197,916.75 and 415,273.50

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Solution

The third proportional to 197,916.75 and 415,273.50 is: 871,336.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,916.75 : 415,273.50 = 415,273.50 : x
  2. Step 2: Convert to fraction form
    197,916.75/415,273.50 = 415,273.50/x
  3. Step 3: Cross multiply
    197,916.75x = 415,273.50 × 415,273.50
  4. Step 4: Simplify right side
    197,916.75x = 172,452,079,802.25
  5. Step 5: Solve for x
    x = 172,452,079,802.25/197,916.75
  6. Step 6: Final answer
    x = 871,336.46

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.