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Finding the Fourth Proportional to 192,247.46, 287,969.07 and 154,603.70

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Solution

The fourth proportional to 192,247.46, 287,969.07 and 154,603.70 is: 231,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,247.46 : 287,969.07 = 154,603.70 : x
  2. Step 2: Convert to fraction form
    192,247.46/287,969.07 = 154,603.70/x
  3. Step 3: Cross multiply
    192,247.46x = 287,969.07 × 154,603.70
  4. Step 4: Simplify right side
    192,247.46x = 44,521,083,707.56
  5. Step 5: Solve for x
    x = 44,521,083,707.56/192,247.46
  6. Step 6: Final answer
    x = 231,582.17

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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.