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Finding the Fourth Proportional to 323,597.45, 485,466.23 and 123,917.84

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Solution

The fourth proportional to 323,597.45, 485,466.23 and 123,917.84 is: 185,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,597.45 : 485,466.23 = 123,917.84 : x
  2. Step 2: Convert to fraction form
    323,597.45/485,466.23 = 123,917.84/x
  3. Step 3: Cross multiply
    323,597.45x = 485,466.23 × 123,917.84
  4. Step 4: Simplify right side
    323,597.45x = 60,157,926,317.51
  5. Step 5: Solve for x
    x = 60,157,926,317.51/323,597.45
  6. Step 6: Final answer
    x = 185,903.58

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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.