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Finding the Fourth Proportional to 192,428.16, 265,527.84 and 106,375.56

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Solution

The fourth proportional to 192,428.16, 265,527.84 and 106,375.56 is: 146,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,428.16 : 265,527.84 = 106,375.56 : x
  2. Step 2: Convert to fraction form
    192,428.16/265,527.84 = 106,375.56/x
  3. Step 3: Cross multiply
    192,428.16x = 265,527.84 × 106,375.56
  4. Step 4: Simplify right side
    192,428.16x = 28,245,672,675.59
  5. Step 5: Solve for x
    x = 28,245,672,675.59/192,428.16
  6. Step 6: Final answer
    x = 146,785.55

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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.