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Finding the Third Proportional to 70,638.75 and 105,958.13

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Solution

The third proportional to 70,638.75 and 105,958.13 is: 158,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,638.75 : 105,958.13 = 105,958.13 : x
  2. Step 2: Convert to fraction form
    70,638.75/105,958.13 = 105,958.13/x
  3. Step 3: Cross multiply
    70,638.75x = 105,958.13 × 105,958.13
  4. Step 4: Simplify right side
    70,638.75x = 11,227,124,253.52
  5. Step 5: Solve for x
    x = 11,227,124,253.52/70,638.75
  6. Step 6: Final answer
    x = 158,937.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.