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Finding the Fourth Proportional to 213,168.40, 294,181.90 and 122,553.68

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Solution

The fourth proportional to 213,168.40, 294,181.90 and 122,553.68 is: 169,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,168.40 : 294,181.90 = 122,553.68 : x
  2. Step 2: Convert to fraction form
    213,168.40/294,181.90 = 122,553.68/x
  3. Step 3: Cross multiply
    213,168.40x = 294,181.90 × 122,553.68
  4. Step 4: Simplify right side
    213,168.40x = 36,053,074,434.39
  5. Step 5: Solve for x
    x = 36,053,074,434.39/213,168.40
  6. Step 6: Final answer
    x = 169,129.54

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