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Finding the Third Proportional to 74,030 and 162,819

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Solution

The third proportional to 74,030 and 162,819 is: 358,098.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,030 : 162,819 = 162,819 : x
  2. Step 2: Convert to fraction form
    74,030/162,819 = 162,819/x
  3. Step 3: Cross multiply
    74,030x = 162,819 × 162,819
  4. Step 4: Simplify right side
    74,030x = 26,510,026,761
  5. Step 5: Solve for x
    x = 26,510,026,761/74,030
  6. Step 6: Final answer
    x = 358,098.43

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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.