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Finding the Fourth Proportional to 274,194.01, 411,138.19 and 84,600.55

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Solution

The fourth proportional to 274,194.01, 411,138.19 and 84,600.55 is: 126,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,194.01 : 411,138.19 = 84,600.55 : x
  2. Step 2: Convert to fraction form
    274,194.01/411,138.19 = 84,600.55/x
  3. Step 3: Cross multiply
    274,194.01x = 411,138.19 × 84,600.55
  4. Step 4: Simplify right side
    274,194.01x = 34,782,514,521.31
  5. Step 5: Solve for x
    x = 34,782,514,521.31/274,194.01
  6. Step 6: Final answer
    x = 126,853.67

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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.