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Finding the Fourth Proportional to 214,889.49, 321,891.25 and 125,873.12

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Solution

The fourth proportional to 214,889.49, 321,891.25 and 125,873.12 is: 188,550.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,889.49 : 321,891.25 = 125,873.12 : x
  2. Step 2: Convert to fraction form
    214,889.49/321,891.25 = 125,873.12/x
  3. Step 3: Cross multiply
    214,889.49x = 321,891.25 × 125,873.12
  4. Step 4: Simplify right side
    214,889.49x = 40,517,455,938.20
  5. Step 5: Solve for x
    x = 40,517,455,938.20/214,889.49
  6. Step 6: Final answer
    x = 188,550.20

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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.