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Finding the Fourth Proportional to 248,426.44, 372,645.78 and 90,654.88

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Solution

The fourth proportional to 248,426.44, 372,645.78 and 90,654.88 is: 135,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,426.44 : 372,645.78 = 90,654.88 : x
  2. Step 2: Convert to fraction form
    248,426.44/372,645.78 = 90,654.88/x
  3. Step 3: Cross multiply
    248,426.44x = 372,645.78 × 90,654.88
  4. Step 4: Simplify right side
    248,426.44x = 33,782,158,468.41
  5. Step 5: Solve for x
    x = 33,782,158,468.41/248,426.44
  6. Step 6: Final answer
    x = 135,984.55

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1.5x scale

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.