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Finding the Fourth Proportional to 248,859.60, 373,289.40 and 82,647.60

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Solution

The fourth proportional to 248,859.60, 373,289.40 and 82,647.60 is: 123,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,859.60 : 373,289.40 = 82,647.60 : x
  2. Step 2: Convert to fraction form
    248,859.60/373,289.40 = 82,647.60/x
  3. Step 3: Cross multiply
    248,859.60x = 373,289.40 × 82,647.60
  4. Step 4: Simplify right side
    248,859.60x = 30,851,473,015.44
  5. Step 5: Solve for x
    x = 30,851,473,015.44/248,859.60
  6. Step 6: Final answer
    x = 123,971.40

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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.