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Finding the Fourth Proportional to 111,992.25, 167,991.62 and 28,886.25

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Solution

The fourth proportional to 111,992.25, 167,991.62 and 28,886.25 is: 43,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,992.25 : 167,991.62 = 28,886.25 : x
  2. Step 2: Convert to fraction form
    111,992.25/167,991.62 = 28,886.25/x
  3. Step 3: Cross multiply
    111,992.25x = 167,991.62 × 28,886.25
  4. Step 4: Simplify right side
    111,992.25x = 4,852,647,788.79
  5. Step 5: Solve for x
    x = 4,852,647,788.79/111,992.25
  6. Step 6: Final answer
    x = 43,330.21

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1.5x scale

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.