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Finding the Fourth Proportional to 320,710.63, 481,060.79 and 110,350.39

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Solution

The fourth proportional to 320,710.63, 481,060.79 and 110,350.39 is: 165,523.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,710.63 : 481,060.79 = 110,350.39 : x
  2. Step 2: Convert to fraction form
    320,710.63/481,060.79 = 110,350.39/x
  3. Step 3: Cross multiply
    320,710.63x = 481,060.79 × 110,350.39
  4. Step 4: Simplify right side
    320,710.63x = 53,085,245,238.46
  5. Step 5: Solve for x
    x = 53,085,245,238.46/320,710.63
  6. Step 6: Final answer
    x = 165,523.81

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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.