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Finding the Fourth Proportional to 273,811.79, 410,756.60 and 84,287.93

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Solution

The fourth proportional to 273,811.79, 410,756.60 and 84,287.93 is: 126,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,811.79 : 410,756.60 = 84,287.93 : x
  2. Step 2: Convert to fraction form
    273,811.79/410,756.60 = 84,287.93/x
  3. Step 3: Cross multiply
    273,811.79x = 410,756.60 × 84,287.93
  4. Step 4: Simplify right side
    273,811.79x = 34,621,821,704.77
  5. Step 5: Solve for x
    x = 34,621,821,704.77/273,811.79
  6. Step 6: Final answer
    x = 126,443.87

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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.