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Finding the Fourth Proportional to 351,556.98, 485,148.44 and 190,411.98

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Solution

The fourth proportional to 351,556.98, 485,148.44 and 190,411.98 is: 262,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,556.98 : 485,148.44 = 190,411.98 : x
  2. Step 2: Convert to fraction form
    351,556.98/485,148.44 = 190,411.98/x
  3. Step 3: Cross multiply
    351,556.98x = 485,148.44 × 190,411.98
  4. Step 4: Simplify right side
    351,556.98x = 92,378,075,054.31
  5. Step 5: Solve for x
    x = 92,378,075,054.31/351,556.98
  6. Step 6: Final answer
    x = 262,768.43

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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.