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Finding the Third Proportional to 74,628 and 101,331

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Solution

The third proportional to 74,628 and 101,331 is: 137,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,628 : 101,331 = 101,331 : x
  2. Step 2: Convert to fraction form
    74,628/101,331 = 101,331/x
  3. Step 3: Cross multiply
    74,628x = 101,331 × 101,331
  4. Step 4: Simplify right side
    74,628x = 10,267,971,561
  5. Step 5: Solve for x
    x = 10,267,971,561/74,628
  6. Step 6: Final answer
    x = 137,588.73

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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.