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Finding the Fourth Proportional to 321,723.56, 482,573.23 and 97,078.03

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Solution

The fourth proportional to 321,723.56, 482,573.23 and 97,078.03 is: 145,613.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,723.56 : 482,573.23 = 97,078.03 : x
  2. Step 2: Convert to fraction form
    321,723.56/482,573.23 = 97,078.03/x
  3. Step 3: Cross multiply
    321,723.56x = 482,573.23 × 97,078.03
  4. Step 4: Simplify right side
    321,723.56x = 46,847,257,050.01
  5. Step 5: Solve for x
    x = 46,847,257,050.01/321,723.56
  6. Step 6: Final answer
    x = 145,613.39

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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.