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Finding the Fourth Proportional to 248,704.80, 373,057.20 and 82,492.80

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Solution

The fourth proportional to 248,704.80, 373,057.20 and 82,492.80 is: 123,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,704.80 : 373,057.20 = 82,492.80 : x
  2. Step 2: Convert to fraction form
    248,704.80/373,057.20 = 82,492.80/x
  3. Step 3: Cross multiply
    248,704.80x = 373,057.20 × 82,492.80
  4. Step 4: Simplify right side
    248,704.80x = 30,774,532,988.16
  5. Step 5: Solve for x
    x = 30,774,532,988.16/248,704.80
  6. Step 6: Final answer
    x = 123,739.20

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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.