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Finding the Fourth Proportional to 349,906.09, 483,102.81 and 269,191.21

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Solution

The fourth proportional to 349,906.09, 483,102.81 and 269,191.21 is: 371,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,906.09 : 483,102.81 = 269,191.21 : x
  2. Step 2: Convert to fraction form
    349,906.09/483,102.81 = 269,191.21/x
  3. Step 3: Cross multiply
    349,906.09x = 483,102.81 × 269,191.21
  4. Step 4: Simplify right side
    349,906.09x = 130,047,026,216.83
  5. Step 5: Solve for x
    x = 130,047,026,216.83/349,906.09
  6. Step 6: Final answer
    x = 371,662.66

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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.