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Finding the Fourth Proportional to 194,988.63, 292,481.60 and 54,747.39

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Solution

The fourth proportional to 194,988.63, 292,481.60 and 54,747.39 is: 82,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,988.63 : 292,481.60 = 54,747.39 : x
  2. Step 2: Convert to fraction form
    194,988.63/292,481.60 = 54,747.39/x
  3. Step 3: Cross multiply
    194,988.63x = 292,481.60 × 54,747.39
  4. Step 4: Simplify right side
    194,988.63x = 16,012,603,949.29
  5. Step 5: Solve for x
    x = 16,012,603,949.29/194,988.63
  6. Step 6: Final answer
    x = 82,120.71

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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.