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Finding the Third Proportional to 74,815.50 and 104,981.25

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Solution

The third proportional to 74,815.50 and 104,981.25 is: 147,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,815.50 : 104,981.25 = 104,981.25 : x
  2. Step 2: Convert to fraction form
    74,815.50/104,981.25 = 104,981.25/x
  3. Step 3: Cross multiply
    74,815.50x = 104,981.25 × 104,981.25
  4. Step 4: Simplify right side
    74,815.50x = 11,021,062,851.56
  5. Step 5: Solve for x
    x = 11,021,062,851.56/74,815.50
  6. Step 6: Final answer
    x = 147,309.89

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.