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Finding the Third Proportional to 74,659.50 and 161,195

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Solution

The third proportional to 74,659.50 and 161,195 is: 348,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,659.50 : 161,195 = 161,195 : x
  2. Step 2: Convert to fraction form
    74,659.50/161,195 = 161,195/x
  3. Step 3: Cross multiply
    74,659.50x = 161,195 × 161,195
  4. Step 4: Simplify right side
    74,659.50x = 25,983,828,025
  5. Step 5: Solve for x
    x = 25,983,828,025/74,659.50
  6. Step 6: Final answer
    x = 348,031.10

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.