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Finding the Fourth Proportional to 176,361.56, 243,245.59 and 122,619.68

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Solution

The fourth proportional to 176,361.56, 243,245.59 and 122,619.68 is: 169,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,361.56 : 243,245.59 = 122,619.68 : x
  2. Step 2: Convert to fraction form
    176,361.56/243,245.59 = 122,619.68/x
  3. Step 3: Cross multiply
    176,361.56x = 243,245.59 × 122,619.68
  4. Step 4: Simplify right side
    176,361.56x = 29,826,694,884.43
  5. Step 5: Solve for x
    x = 29,826,694,884.43/176,361.56
  6. Step 6: Final answer
    x = 169,122.43

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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.