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Finding the Fourth Proportional to 342,603.45, 472,777.43 and 189,647.37

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Solution

The fourth proportional to 342,603.45, 472,777.43 and 189,647.37 is: 261,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,603.45 : 472,777.43 = 189,647.37 : x
  2. Step 2: Convert to fraction form
    342,603.45/472,777.43 = 189,647.37/x
  3. Step 3: Cross multiply
    342,603.45x = 472,777.43 × 189,647.37
  4. Step 4: Simplify right side
    342,603.45x = 89,660,995,246.62
  5. Step 5: Solve for x
    x = 89,660,995,246.62/342,603.45
  6. Step 6: Final answer
    x = 261,704.88

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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.