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Finding the Fourth Proportional to 76,626.54, 105,743.61 and 43,092.54

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Solution

The fourth proportional to 76,626.54, 105,743.61 and 43,092.54 is: 59,467.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,626.54 : 105,743.61 = 43,092.54 : x
  2. Step 2: Convert to fraction form
    76,626.54/105,743.61 = 43,092.54/x
  3. Step 3: Cross multiply
    76,626.54x = 105,743.61 × 43,092.54
  4. Step 4: Simplify right side
    76,626.54x = 4,556,760,743.67
  5. Step 5: Solve for x
    x = 4,556,760,743.67/76,626.54
  6. Step 6: Final answer
    x = 59,467.13

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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.