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Finding the Third Proportional to 74,245 and 161,893.50

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Solution

The third proportional to 74,245 and 161,893.50 is: 353,013.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,245 : 161,893.50 = 161,893.50 : x
  2. Step 2: Convert to fraction form
    74,245/161,893.50 = 161,893.50/x
  3. Step 3: Cross multiply
    74,245x = 161,893.50 × 161,893.50
  4. Step 4: Simplify right side
    74,245x = 26,209,505,342.25
  5. Step 5: Solve for x
    x = 26,209,505,342.25/74,245
  6. Step 6: Final answer
    x = 353,013.74

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.