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Finding the Fourth Proportional to 81,663.76, 122,496.25 and 22,502.68

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Solution

The fourth proportional to 81,663.76, 122,496.25 and 22,502.68 is: 33,754.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,663.76 : 122,496.25 = 22,502.68 : x
  2. Step 2: Convert to fraction form
    81,663.76/122,496.25 = 22,502.68/x
  3. Step 3: Cross multiply
    81,663.76x = 122,496.25 × 22,502.68
  4. Step 4: Simplify right side
    81,663.76x = 2,756,493,594.65
  5. Step 5: Solve for x
    x = 2,756,493,594.65/81,663.76
  6. Step 6: Final answer
    x = 33,754.18

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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.