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Finding the Fourth Proportional to 323,456.46, 485,161.65 and 121,014.06

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Solution

The fourth proportional to 323,456.46, 485,161.65 and 121,014.06 is: 181,512.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,456.46 : 485,161.65 = 121,014.06 : x
  2. Step 2: Convert to fraction form
    323,456.46/485,161.65 = 121,014.06/x
  3. Step 3: Cross multiply
    323,456.46x = 485,161.65 × 121,014.06
  4. Step 4: Simplify right side
    323,456.46x = 58,711,381,022.80
  5. Step 5: Solve for x
    x = 58,711,381,022.80/323,456.46
  6. Step 6: Final answer
    x = 181,512.47

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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.