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Finding the Fourth Proportional to 248,346.42, 372,481.83 and 90,574.98

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Solution

The fourth proportional to 248,346.42, 372,481.83 and 90,574.98 is: 135,848.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,346.42 : 372,481.83 = 90,574.98 : x
  2. Step 2: Convert to fraction form
    248,346.42/372,481.83 = 90,574.98/x
  3. Step 3: Cross multiply
    248,346.42x = 372,481.83 × 90,574.98
  4. Step 4: Simplify right side
    248,346.42x = 33,737,534,302.61
  5. Step 5: Solve for x
    x = 33,737,534,302.61/248,346.42
  6. Step 6: Final answer
    x = 135,848.68

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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.