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Finding the Fourth Proportional to 273,898.60, 410,847.90 and 126,442.60

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Solution

The fourth proportional to 273,898.60, 410,847.90 and 126,442.60 is: 189,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,898.60 : 410,847.90 = 126,442.60 : x
  2. Step 2: Convert to fraction form
    273,898.60/410,847.90 = 126,442.60/x
  3. Step 3: Cross multiply
    273,898.60x = 410,847.90 × 126,442.60
  4. Step 4: Simplify right side
    273,898.60x = 51,948,676,680.54
  5. Step 5: Solve for x
    x = 51,948,676,680.54/273,898.60
  6. Step 6: Final answer
    x = 189,663.90

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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.