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Finding the Fourth Proportional to 248,932.80, 373,350.60 and 82,720.80

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Solution

The fourth proportional to 248,932.80, 373,350.60 and 82,720.80 is: 124,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,932.80 : 373,350.60 = 82,720.80 : x
  2. Step 2: Convert to fraction form
    248,932.80/373,350.60 = 82,720.80/x
  3. Step 3: Cross multiply
    248,932.80x = 373,350.60 × 82,720.80
  4. Step 4: Simplify right side
    248,932.80x = 30,883,860,312.48
  5. Step 5: Solve for x
    x = 30,883,860,312.48/248,932.80
  6. Step 6: Final answer
    x = 124,065.05

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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.