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Finding the Fourth Proportional to 192,015.16, 287,933.59 and 112,076.21

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Solution

The fourth proportional to 192,015.16, 287,933.59 and 112,076.21 is: 168,062.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,015.16 : 287,933.59 = 112,076.21 : x
  2. Step 2: Convert to fraction form
    192,015.16/287,933.59 = 112,076.21/x
  3. Step 3: Cross multiply
    192,015.16x = 287,933.59 × 112,076.21
  4. Step 4: Simplify right side
    192,015.16x = 32,270,504,108.77
  5. Step 5: Solve for x
    x = 32,270,504,108.77/192,015.16
  6. Step 6: Final answer
    x = 168,062.27

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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.