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Finding the Fourth Proportional to 248,426.52, 372,645.89 and 90,654.92

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Solution

The fourth proportional to 248,426.52, 372,645.89 and 90,654.92 is: 135,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,426.52 : 372,645.89 = 90,654.92 : x
  2. Step 2: Convert to fraction form
    248,426.52/372,645.89 = 90,654.92/x
  3. Step 3: Cross multiply
    248,426.52x = 372,645.89 × 90,654.92
  4. Step 4: Simplify right side
    248,426.52x = 33,782,183,346.28
  5. Step 5: Solve for x
    x = 33,782,183,346.28/248,426.52
  6. Step 6: Final answer
    x = 135,984.61

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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.