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Finding the Fourth Proportional to 167,409.95, 231,027.41 and 90,930.54

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Solution

The fourth proportional to 167,409.95, 231,027.41 and 90,930.54 is: 125,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,409.95 : 231,027.41 = 90,930.54 : x
  2. Step 2: Convert to fraction form
    167,409.95/231,027.41 = 90,930.54/x
  3. Step 3: Cross multiply
    167,409.95x = 231,027.41 × 90,930.54
  4. Step 4: Simplify right side
    167,409.95x = 21,007,445,877.30
  5. Step 5: Solve for x
    x = 21,007,445,877.30/167,409.95
  6. Step 6: Final answer
    x = 125,485.05

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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.