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Finding the Third Proportional to 75,172.50 and 162,819

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Solution

The third proportional to 75,172.50 and 162,819 is: 352,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,172.50 : 162,819 = 162,819 : x
  2. Step 2: Convert to fraction form
    75,172.50/162,819 = 162,819/x
  3. Step 3: Cross multiply
    75,172.50x = 162,819 × 162,819
  4. Step 4: Simplify right side
    75,172.50x = 26,510,026,761
  5. Step 5: Solve for x
    x = 26,510,026,761/75,172.50
  6. Step 6: Final answer
    x = 352,655.91

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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.