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Finding the Fourth Proportional to 174,619.94, 261,710.89 and 74,662.80

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Solution

The fourth proportional to 174,619.94, 261,710.89 and 74,662.80 is: 111,900.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,619.94 : 261,710.89 = 74,662.80 : x
  2. Step 2: Convert to fraction form
    174,619.94/261,710.89 = 74,662.80/x
  3. Step 3: Cross multiply
    174,619.94x = 261,710.89 × 74,662.80
  4. Step 4: Simplify right side
    174,619.94x = 19,540,067,464.58
  5. Step 5: Solve for x
    x = 19,540,067,464.58/174,619.94
  6. Step 6: Final answer
    x = 111,900.55

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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.