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Finding the Fourth Proportional to 177,739.97, 266,433.37 and 72,634.37

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Solution

The fourth proportional to 177,739.97, 266,433.37 and 72,634.37 is: 108,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,739.97 : 266,433.37 = 72,634.37 : x
  2. Step 2: Convert to fraction form
    177,739.97/266,433.37 = 72,634.37/x
  3. Step 3: Cross multiply
    177,739.97x = 266,433.37 × 72,634.37
  4. Step 4: Simplify right side
    177,739.97x = 19,352,218,463.17
  5. Step 5: Solve for x
    x = 19,352,218,463.17/177,739.97
  6. Step 6: Final answer
    x = 108,879.39

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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.