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Finding the Fourth Proportional to 192,015.91, 287,934.71 and 112,076.96

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Solution

The fourth proportional to 192,015.91, 287,934.71 and 112,076.96 is: 168,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,015.91 : 287,934.71 = 112,076.96 : x
  2. Step 2: Convert to fraction form
    192,015.91/287,934.71 = 112,076.96/x
  3. Step 3: Cross multiply
    192,015.91x = 287,934.71 × 112,076.96
  4. Step 4: Simplify right side
    192,015.91x = 32,270,845,815.80
  5. Step 5: Solve for x
    x = 32,270,845,815.80/192,015.91
  6. Step 6: Final answer
    x = 168,063.40

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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.