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Finding the Fourth Proportional to 168,806.89, 232,843.54 and 108,281.67

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Solution

The fourth proportional to 168,806.89, 232,843.54 and 108,281.67 is: 149,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,806.89 : 232,843.54 = 108,281.67 : x
  2. Step 2: Convert to fraction form
    168,806.89/232,843.54 = 108,281.67/x
  3. Step 3: Cross multiply
    168,806.89x = 232,843.54 × 108,281.67
  4. Step 4: Simplify right side
    168,806.89x = 25,212,687,359.91
  5. Step 5: Solve for x
    x = 25,212,687,359.91/168,806.89
  6. Step 6: Final answer
    x = 149,358.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.