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Finding the Fourth Proportional to 323,600.68, 485,198.07 and 98,886.43

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Solution

The fourth proportional to 323,600.68, 485,198.07 and 98,886.43 is: 148,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,600.68 : 485,198.07 = 98,886.43 : x
  2. Step 2: Convert to fraction form
    323,600.68/485,198.07 = 98,886.43/x
  3. Step 3: Cross multiply
    323,600.68x = 485,198.07 × 98,886.43
  4. Step 4: Simplify right side
    323,600.68x = 47,979,504,985.19
  5. Step 5: Solve for x
    x = 47,979,504,985.19/323,600.68
  6. Step 6: Final answer
    x = 148,267.63

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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.