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Finding the Fourth Proportional to 321,750.93, 482,626.35 and 111,388.80

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Solution

The fourth proportional to 321,750.93, 482,626.35 and 111,388.80 is: 167,083.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,750.93 : 482,626.35 = 111,388.80 : x
  2. Step 2: Convert to fraction form
    321,750.93/482,626.35 = 111,388.80/x
  3. Step 3: Cross multiply
    321,750.93x = 482,626.35 × 111,388.80
  4. Step 4: Simplify right side
    321,750.93x = 53,759,169,974.88
  5. Step 5: Solve for x
    x = 53,759,169,974.88/321,750.93
  6. Step 6: Final answer
    x = 167,083.18

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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.