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Finding the Fourth Proportional to 351,388.80, 484,910.69 and 190,242.54

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Solution

The fourth proportional to 351,388.80, 484,910.69 and 190,242.54 is: 262,531.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,388.80 : 484,910.69 = 190,242.54 : x
  2. Step 2: Convert to fraction form
    351,388.80/484,910.69 = 190,242.54/x
  3. Step 3: Cross multiply
    351,388.80x = 484,910.69 × 190,242.54
  4. Step 4: Simplify right side
    351,388.80x = 92,250,640,387.54
  5. Step 5: Solve for x
    x = 92,250,640,387.54/351,388.80
  6. Step 6: Final answer
    x = 262,531.53

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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.