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Finding the Fourth Proportional to 161,682.12, 223,121.39 and 93,738.65

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Solution

The fourth proportional to 161,682.12, 223,121.39 and 93,738.65 is: 129,359.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,682.12 : 223,121.39 = 93,738.65 : x
  2. Step 2: Convert to fraction form
    161,682.12/223,121.39 = 93,738.65/x
  3. Step 3: Cross multiply
    161,682.12x = 223,121.39 × 93,738.65
  4. Step 4: Simplify right side
    161,682.12x = 20,915,096,300.42
  5. Step 5: Solve for x
    x = 20,915,096,300.42/161,682.12
  6. Step 6: Final answer
    x = 129,359.36

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