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Finding the Fourth Proportional to 236,530, 326,411.40 and 161,210.08

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Solution

The fourth proportional to 236,530, 326,411.40 and 161,210.08 is: 222,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,530 : 326,411.40 = 161,210.08 : x
  2. Step 2: Convert to fraction form
    236,530/326,411.40 = 161,210.08/x
  3. Step 3: Cross multiply
    236,530x = 326,411.40 × 161,210.08
  4. Step 4: Simplify right side
    236,530x = 52,620,807,906.91
  5. Step 5: Solve for x
    x = 52,620,807,906.91/236,530
  6. Step 6: Final answer
    x = 222,469.91

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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.