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Finding the Fourth Proportional to 318,853.44, 477,952.11 and 141,444

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Solution

The fourth proportional to 318,853.44, 477,952.11 and 141,444 is: 212,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,853.44 : 477,952.11 = 141,444 : x
  2. Step 2: Convert to fraction form
    318,853.44/477,952.11 = 141,444/x
  3. Step 3: Cross multiply
    318,853.44x = 477,952.11 × 141,444
  4. Step 4: Simplify right side
    318,853.44x = 67,603,458,246.84
  5. Step 5: Solve for x
    x = 67,603,458,246.84/318,853.44
  6. Step 6: Final answer
    x = 212,020.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.