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Finding the Fourth Proportional to 160,992.78, 222,435.75 and 120,839.46

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Solution

The fourth proportional to 160,992.78, 222,435.75 and 120,839.46 is: 166,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,992.78 : 222,435.75 = 120,839.46 : x
  2. Step 2: Convert to fraction form
    160,992.78/222,435.75 = 120,839.46/x
  3. Step 3: Cross multiply
    160,992.78x = 222,435.75 × 120,839.46
  4. Step 4: Simplify right side
    160,992.78x = 26,879,015,914.70
  5. Step 5: Solve for x
    x = 26,879,015,914.70/160,992.78
  6. Step 6: Final answer
    x = 166,957.90

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1.5x scale

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.