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Finding the Fourth Proportional to 263,879.28, 395,918.55 and 158,772.06

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Solution

The fourth proportional to 263,879.28, 395,918.55 and 158,772.06 is: 238,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,879.28 : 395,918.55 = 158,772.06 : x
  2. Step 2: Convert to fraction form
    263,879.28/395,918.55 = 158,772.06/x
  3. Step 3: Cross multiply
    263,879.28x = 395,918.55 × 158,772.06
  4. Step 4: Simplify right side
    263,879.28x = 62,860,803,775.71
  5. Step 5: Solve for x
    x = 62,860,803,775.71/263,879.28
  6. Step 6: Final answer
    x = 238,218.04

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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.