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Finding the Fourth Proportional to 294,081.40, 405,906.38 and 166,833.40

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Solution

The fourth proportional to 294,081.40, 405,906.38 and 166,833.40 is: 230,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,081.40 : 405,906.38 = 166,833.40 : x
  2. Step 2: Convert to fraction form
    294,081.40/405,906.38 = 166,833.40/x
  3. Step 3: Cross multiply
    294,081.40x = 405,906.38 × 166,833.40
  4. Step 4: Simplify right side
    294,081.40x = 67,718,741,457.09
  5. Step 5: Solve for x
    x = 67,718,741,457.09/294,081.40
  6. Step 6: Final answer
    x = 230,272.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.