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Finding the Fourth Proportional to 214,063.83, 321,027.76 and 69,936.80

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Solution

The fourth proportional to 214,063.83, 321,027.76 and 69,936.80 is: 104,883.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,063.83 : 321,027.76 = 69,936.80 : x
  2. Step 2: Convert to fraction form
    214,063.83/321,027.76 = 69,936.80/x
  3. Step 3: Cross multiply
    214,063.83x = 321,027.76 × 69,936.80
  4. Step 4: Simplify right side
    214,063.83x = 22,451,655,494.57
  5. Step 5: Solve for x
    x = 22,451,655,494.57/214,063.83
  6. Step 6: Final answer
    x = 104,883.00

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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.