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Finding the Third Proportional to 144,600.19 and 311,343.75

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Solution

The third proportional to 144,600.19 and 311,343.75 is: 670,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,600.19 : 311,343.75 = 311,343.75 : x
  2. Step 2: Convert to fraction form
    144,600.19/311,343.75 = 311,343.75/x
  3. Step 3: Cross multiply
    144,600.19x = 311,343.75 × 311,343.75
  4. Step 4: Simplify right side
    144,600.19x = 96,934,930,664.06
  5. Step 5: Solve for x
    x = 96,934,930,664.06/144,600.19
  6. Step 6: Final answer
    x = 670,365.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.