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Finding the Fourth Proportional to 199,486.73, 275,327.30 and 118,919.41

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Solution

The fourth proportional to 199,486.73, 275,327.30 and 118,919.41 is: 164,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,486.73 : 275,327.30 = 118,919.41 : x
  2. Step 2: Convert to fraction form
    199,486.73/275,327.30 = 118,919.41/x
  3. Step 3: Cross multiply
    199,486.73x = 275,327.30 × 118,919.41
  4. Step 4: Simplify right side
    199,486.73x = 32,741,760,072.89
  5. Step 5: Solve for x
    x = 32,741,760,072.89/199,486.73
  6. Step 6: Final answer
    x = 164,130.02

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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.