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Finding the Fourth Proportional to 321,701.49, 482,626.37 and 111,339.43

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Solution

The fourth proportional to 321,701.49, 482,626.37 and 111,339.43 is: 167,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,701.49 : 482,626.37 = 111,339.43 : x
  2. Step 2: Convert to fraction form
    321,701.49/482,626.37 = 111,339.43/x
  3. Step 3: Cross multiply
    321,701.49x = 482,626.37 × 111,339.43
  4. Step 4: Simplify right side
    321,701.49x = 53,735,344,938.77
  5. Step 5: Solve for x
    x = 53,735,344,938.77/321,701.49
  6. Step 6: Final answer
    x = 167,034.80

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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.