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Finding the Fourth Proportional to 320,711.63, 481,062.28 and 110,351.39

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Solution

The fourth proportional to 320,711.63, 481,062.28 and 110,351.39 is: 165,525.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,711.63 : 481,062.28 = 110,351.39 : x
  2. Step 2: Convert to fraction form
    320,711.63/481,062.28 = 110,351.39/x
  3. Step 3: Cross multiply
    320,711.63x = 481,062.28 × 110,351.39
  4. Step 4: Simplify right side
    320,711.63x = 53,085,891,274.57
  5. Step 5: Solve for x
    x = 53,085,891,274.57/320,711.63
  6. Step 6: Final answer
    x = 165,525.31

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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.