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Finding the Fourth Proportional to 323,485.74, 485,315.97 and 98,840.04

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Solution

The fourth proportional to 323,485.74, 485,315.97 and 98,840.04 is: 148,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,485.74 : 485,315.97 = 98,840.04 : x
  2. Step 2: Convert to fraction form
    323,485.74/485,315.97 = 98,840.04/x
  3. Step 3: Cross multiply
    323,485.74x = 485,315.97 × 98,840.04
  4. Step 4: Simplify right side
    323,485.74x = 47,968,649,887.44
  5. Step 5: Solve for x
    x = 47,968,649,887.44/323,485.74
  6. Step 6: Final answer
    x = 148,286.75

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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.