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Finding the Fourth Proportional to 81,502.68, 122,240.90 and 22,324.51

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Solution

The fourth proportional to 81,502.68, 122,240.90 and 22,324.51 is: 33,483.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,502.68 : 122,240.90 = 22,324.51 : x
  2. Step 2: Convert to fraction form
    81,502.68/122,240.90 = 22,324.51/x
  3. Step 3: Cross multiply
    81,502.68x = 122,240.90 × 22,324.51
  4. Step 4: Simplify right side
    81,502.68x = 2,728,967,471.63
  5. Step 5: Solve for x
    x = 2,728,967,471.63/81,502.68
  6. Step 6: Final answer
    x = 33,483.16

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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.