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Finding the Fourth Proportional to 218,039.70, 327,050.22 and 68,276.67

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Solution

The fourth proportional to 218,039.70, 327,050.22 and 68,276.67 is: 102,412.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,039.70 : 327,050.22 = 68,276.67 : x
  2. Step 2: Convert to fraction form
    218,039.70/327,050.22 = 68,276.67/x
  3. Step 3: Cross multiply
    218,039.70x = 327,050.22 × 68,276.67
  4. Step 4: Simplify right side
    218,039.70x = 22,329,899,944.37
  5. Step 5: Solve for x
    x = 22,329,899,944.37/218,039.70
  6. Step 6: Final answer
    x = 102,412.08

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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.