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Finding the Fourth Proportional to 223,479.14, 335,429.37 and 81,461.68

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Solution

The fourth proportional to 223,479.14, 335,429.37 and 81,461.68 is: 122,269.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,479.14 : 335,429.37 = 81,461.68 : x
  2. Step 2: Convert to fraction form
    223,479.14/335,429.37 = 81,461.68/x
  3. Step 3: Cross multiply
    223,479.14x = 335,429.37 × 81,461.68
  4. Step 4: Simplify right side
    223,479.14x = 27,324,639,162.97
  5. Step 5: Solve for x
    x = 27,324,639,162.97/223,479.14
  6. Step 6: Final answer
    x = 122,269.31

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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.