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Finding the Fourth Proportional to 164,309.21, 246,489.28 and 69,540.22

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Solution

The fourth proportional to 164,309.21, 246,489.28 and 69,540.22 is: 104,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,309.21 : 246,489.28 = 69,540.22 : x
  2. Step 2: Convert to fraction form
    164,309.21/246,489.28 = 69,540.22/x
  3. Step 3: Cross multiply
    164,309.21x = 246,489.28 × 69,540.22
  4. Step 4: Simplify right side
    164,309.21x = 17,140,918,893.10
  5. Step 5: Solve for x
    x = 17,140,918,893.10/164,309.21
  6. Step 6: Final answer
    x = 104,321.11

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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.