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Finding the Fourth Proportional to 323,305.56, 485,180.28 and 112,943.70

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Solution

The fourth proportional to 323,305.56, 485,180.28 and 112,943.70 is: 169,493.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,305.56 : 485,180.28 = 112,943.70 : x
  2. Step 2: Convert to fraction form
    323,305.56/485,180.28 = 112,943.70/x
  3. Step 3: Cross multiply
    323,305.56x = 485,180.28 × 112,943.70
  4. Step 4: Simplify right side
    323,305.56x = 54,798,055,990.24
  5. Step 5: Solve for x
    x = 54,798,055,990.24/323,305.56
  6. Step 6: Final answer
    x = 169,493.08

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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.