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Finding the Fourth Proportional to 124,481.22, 171,782.01 and 67,889.22

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Solution

The fourth proportional to 124,481.22, 171,782.01 and 67,889.22 is: 93,685.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,481.22 : 171,782.01 = 67,889.22 : x
  2. Step 2: Convert to fraction form
    124,481.22/171,782.01 = 67,889.22/x
  3. Step 3: Cross multiply
    124,481.22x = 171,782.01 × 67,889.22
  4. Step 4: Simplify right side
    124,481.22x = 11,662,146,668.93
  5. Step 5: Solve for x
    x = 11,662,146,668.93/124,481.22
  6. Step 6: Final answer
    x = 93,685.99

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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.