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Finding the Fourth Proportional to 248,708.80, 373,063.20 and 82,496.80

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Solution

The fourth proportional to 248,708.80, 373,063.20 and 82,496.80 is: 123,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,708.80 : 373,063.20 = 82,496.80 : x
  2. Step 2: Convert to fraction form
    248,708.80/373,063.20 = 82,496.80/x
  3. Step 3: Cross multiply
    248,708.80x = 373,063.20 × 82,496.80
  4. Step 4: Simplify right side
    248,708.80x = 30,776,520,197.76
  5. Step 5: Solve for x
    x = 30,776,520,197.76/248,708.80
  6. Step 6: Final answer
    x = 123,745.20

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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.