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Finding the Fourth Proportional to 323,759.85, 485,362.87 and 124,223.44

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Solution

The fourth proportional to 323,759.85, 485,362.87 and 124,223.44 is: 186,228.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,759.85 : 485,362.87 = 124,223.44 : x
  2. Step 2: Convert to fraction form
    323,759.85/485,362.87 = 124,223.44/x
  3. Step 3: Cross multiply
    323,759.85x = 485,362.87 × 124,223.44
  4. Step 4: Simplify right side
    323,759.85x = 60,293,443,835.71
  5. Step 5: Solve for x
    x = 60,293,443,835.71/323,759.85
  6. Step 6: Final answer
    x = 186,228.91

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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.