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Finding the Fourth Proportional to 103,090.20, 154,620.90 and 32,976.60

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Solution

The fourth proportional to 103,090.20, 154,620.90 and 32,976.60 is: 49,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,090.20 : 154,620.90 = 32,976.60 : x
  2. Step 2: Convert to fraction form
    103,090.20/154,620.90 = 32,976.60/x
  3. Step 3: Cross multiply
    103,090.20x = 154,620.90 × 32,976.60
  4. Step 4: Simplify right side
    103,090.20x = 5,098,871,570.94
  5. Step 5: Solve for x
    x = 5,098,871,570.94/103,090.20
  6. Step 6: Final answer
    x = 49,460.29

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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.