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Finding the Fourth Proportional to 126,843.70, 190,267.44 and 60,290.68

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Solution

The fourth proportional to 126,843.70, 190,267.44 and 60,290.68 is: 90,436.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,843.70 : 190,267.44 = 60,290.68 : x
  2. Step 2: Convert to fraction form
    126,843.70/190,267.44 = 60,290.68/x
  3. Step 3: Cross multiply
    126,843.70x = 190,267.44 × 60,290.68
  4. Step 4: Simplify right side
    126,843.70x = 11,471,353,339.46
  5. Step 5: Solve for x
    x = 11,471,353,339.46/126,843.70
  6. Step 6: Final answer
    x = 90,436.92

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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.