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Finding the Third Proportional to 74,037.75 and 162,831

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Solution

The third proportional to 74,037.75 and 162,831 is: 358,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,037.75 : 162,831 = 162,831 : x
  2. Step 2: Convert to fraction form
    74,037.75/162,831 = 162,831/x
  3. Step 3: Cross multiply
    74,037.75x = 162,831 × 162,831
  4. Step 4: Simplify right side
    74,037.75x = 26,513,934,561
  5. Step 5: Solve for x
    x = 26,513,934,561/74,037.75
  6. Step 6: Final answer
    x = 358,113.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.