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Finding the Fourth Proportional to 351,351.86, 484,865.46 and 190,206.80

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Solution

The fourth proportional to 351,351.86, 484,865.46 and 190,206.80 is: 262,485.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,351.86 : 484,865.46 = 190,206.80 : x
  2. Step 2: Convert to fraction form
    351,351.86/484,865.46 = 190,206.80/x
  3. Step 3: Cross multiply
    351,351.86x = 484,865.46 × 190,206.80
  4. Step 4: Simplify right side
    351,351.86x = 92,224,707,577.13
  5. Step 5: Solve for x
    x = 92,224,707,577.13/351,351.86
  6. Step 6: Final answer
    x = 262,485.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.