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Finding the Fourth Proportional to 321,049.18, 443,052.48 and 185,080.60

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Solution

The fourth proportional to 321,049.18, 443,052.48 and 185,080.60 is: 255,413.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,049.18 : 443,052.48 = 185,080.60 : x
  2. Step 2: Convert to fraction form
    321,049.18/443,052.48 = 185,080.60/x
  3. Step 3: Cross multiply
    321,049.18x = 443,052.48 × 185,080.60
  4. Step 4: Simplify right side
    321,049.18x = 82,000,418,829.89
  5. Step 5: Solve for x
    x = 82,000,418,829.89/321,049.18
  6. Step 6: Final answer
    x = 255,413.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.