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Finding the Fourth Proportional to 168,735.31, 252,643.39 and 118,740.49

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Solution

The fourth proportional to 168,735.31, 252,643.39 and 118,740.49 is: 177,787.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,735.31 : 252,643.39 = 118,740.49 : x
  2. Step 2: Convert to fraction form
    168,735.31/252,643.39 = 118,740.49/x
  3. Step 3: Cross multiply
    168,735.31x = 252,643.39 × 118,740.49
  4. Step 4: Simplify right side
    168,735.31x = 29,998,998,995.40
  5. Step 5: Solve for x
    x = 29,998,998,995.40/168,735.31
  6. Step 6: Final answer
    x = 177,787.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.