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Finding the Fourth Proportional to 248,425.44, 372,644.28 and 90,653.88

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Solution

The fourth proportional to 248,425.44, 372,644.28 and 90,653.88 is: 135,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,425.44 : 372,644.28 = 90,653.88 : x
  2. Step 2: Convert to fraction form
    248,425.44/372,644.28 = 90,653.88/x
  3. Step 3: Cross multiply
    248,425.44x = 372,644.28 × 90,653.88
  4. Step 4: Simplify right side
    248,425.44x = 33,781,649,841.81
  5. Step 5: Solve for x
    x = 33,781,649,841.81/248,425.44
  6. Step 6: Final answer
    x = 135,983.05

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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.