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Finding the Fourth Proportional to 309,555.70, 464,255.63 and 119,951.00

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Solution

The fourth proportional to 309,555.70, 464,255.63 and 119,951.00 is: 179,896.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,555.70 : 464,255.63 = 119,951.00 : x
  2. Step 2: Convert to fraction form
    309,555.70/464,255.63 = 119,951.00/x
  3. Step 3: Cross multiply
    309,555.70x = 464,255.63 × 119,951.00
  4. Step 4: Simplify right side
    309,555.70x = 55,687,928,215.33
  5. Step 5: Solve for x
    x = 55,687,928,215.33/309,555.70
  6. Step 6: Final answer
    x = 179,896.31

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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.