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Finding the Fourth Proportional to 248,355.32, 372,532.44 and 90,519.26

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Solution

The fourth proportional to 248,355.32, 372,532.44 and 90,519.26 is: 135,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,355.32 : 372,532.44 = 90,519.26 : x
  2. Step 2: Convert to fraction form
    248,355.32/372,532.44 = 90,519.26/x
  3. Step 3: Cross multiply
    248,355.32x = 372,532.44 × 90,519.26
  4. Step 4: Simplify right side
    248,355.32x = 33,721,360,794.79
  5. Step 5: Solve for x
    x = 33,721,360,794.79/248,355.32
  6. Step 6: Final answer
    x = 135,778.69

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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.