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Finding the Fourth Proportional to 323,724.80, 485,727.08 and 173,790.01

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Solution

The fourth proportional to 323,724.80, 485,727.08 and 173,790.01 is: 260,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,724.80 : 485,727.08 = 173,790.01 : x
  2. Step 2: Convert to fraction form
    323,724.80/485,727.08 = 173,790.01/x
  3. Step 3: Cross multiply
    323,724.80x = 485,727.08 × 173,790.01
  4. Step 4: Simplify right side
    323,724.80x = 84,414,512,074.03
  5. Step 5: Solve for x
    x = 84,414,512,074.03/323,724.80
  6. Step 6: Final answer
    x = 260,760.10

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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.