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Finding the Fourth Proportional to 192,361.31, 265,450.37 and 106,315.85

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Solution

The fourth proportional to 192,361.31, 265,450.37 and 106,315.85 is: 146,711.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,361.31 : 265,450.37 = 106,315.85 : x
  2. Step 2: Convert to fraction form
    192,361.31/265,450.37 = 106,315.85/x
  3. Step 3: Cross multiply
    192,361.31x = 265,450.37 × 106,315.85
  4. Step 4: Simplify right side
    192,361.31x = 28,221,581,851.41
  5. Step 5: Solve for x
    x = 28,221,581,851.41/192,361.31
  6. Step 6: Final answer
    x = 146,711.32

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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.