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Finding the Fourth Proportional to 323,722.24, 485,577.60 and 123,988.48

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Solution

The fourth proportional to 323,722.24, 485,577.60 and 123,988.48 is: 185,980.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,722.24 : 485,577.60 = 123,988.48 : x
  2. Step 2: Convert to fraction form
    323,722.24/485,577.60 = 123,988.48/x
  3. Step 3: Cross multiply
    323,722.24x = 485,577.60 × 123,988.48
  4. Step 4: Simplify right side
    323,722.24x = 60,206,028,546.05
  5. Step 5: Solve for x
    x = 60,206,028,546.05/323,722.24
  6. Step 6: Final answer
    x = 185,980.51

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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.