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Finding the Fourth Proportional to 248,360.86, 372,596.85 and 90,589.31

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Solution

The fourth proportional to 248,360.86, 372,596.85 and 90,589.31 is: 135,904.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,360.86 : 372,596.85 = 90,589.31 : x
  2. Step 2: Convert to fraction form
    248,360.86/372,596.85 = 90,589.31/x
  3. Step 3: Cross multiply
    248,360.86x = 372,596.85 × 90,589.31
  4. Step 4: Simplify right side
    248,360.86x = 33,753,292,028.22
  5. Step 5: Solve for x
    x = 33,753,292,028.22/248,360.86
  6. Step 6: Final answer
    x = 135,904.23

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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.