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Finding the Third Proportional to 74,430 and 101,071

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Solution

The third proportional to 74,430 and 101,071 is: 137,247.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430 : 101,071 = 101,071 : x
  2. Step 2: Convert to fraction form
    74,430/101,071 = 101,071/x
  3. Step 3: Cross multiply
    74,430x = 101,071 × 101,071
  4. Step 4: Simplify right side
    74,430x = 10,215,347,041
  5. Step 5: Solve for x
    x = 10,215,347,041/74,430
  6. Step 6: Final answer
    x = 137,247.71

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.