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Finding the Fourth Proportional to 192,474.78, 265,603.14 and 106,431.54

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Solution

The fourth proportional to 192,474.78, 265,603.14 and 106,431.54 is: 146,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,474.78 : 265,603.14 = 106,431.54 : x
  2. Step 2: Convert to fraction form
    192,474.78/265,603.14 = 106,431.54/x
  3. Step 3: Cross multiply
    192,474.78x = 265,603.14 × 106,431.54
  4. Step 4: Simplify right side
    192,474.78x = 28,268,551,219.04
  5. Step 5: Solve for x
    x = 28,268,551,219.04/192,474.78
  6. Step 6: Final answer
    x = 146,868.86

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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.