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Finding the Fourth Proportional to 174,990.59, 262,272.63 and 90,704.28

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Solution

The fourth proportional to 174,990.59, 262,272.63 and 90,704.28 is: 135,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,990.59 : 262,272.63 = 90,704.28 : x
  2. Step 2: Convert to fraction form
    174,990.59/262,272.63 = 90,704.28/x
  3. Step 3: Cross multiply
    174,990.59x = 262,272.63 × 90,704.28
  4. Step 4: Simplify right side
    174,990.59x = 23,789,250,067.86
  5. Step 5: Solve for x
    x = 23,789,250,067.86/174,990.59
  6. Step 6: Final answer
    x = 135,945.89

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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.