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Finding the Fourth Proportional to 164,435.80, 246,653.70 and 111,947.80

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Solution

The fourth proportional to 164,435.80, 246,653.70 and 111,947.80 is: 167,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,435.80 : 246,653.70 = 111,947.80 : x
  2. Step 2: Convert to fraction form
    164,435.80/246,653.70 = 111,947.80/x
  3. Step 3: Cross multiply
    164,435.80x = 246,653.70 × 111,947.80
  4. Step 4: Simplify right side
    164,435.80x = 27,612,339,076.86
  5. Step 5: Solve for x
    x = 27,612,339,076.86/164,435.80
  6. Step 6: Final answer
    x = 167,921.70

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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.