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Finding the Fourth Proportional to 121,560.52, 181,861.26 and 92,063.56

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Solution

The fourth proportional to 121,560.52, 181,861.26 and 92,063.56 is: 137,732.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,560.52 : 181,861.26 = 92,063.56 : x
  2. Step 2: Convert to fraction form
    121,560.52/181,861.26 = 92,063.56/x
  3. Step 3: Cross multiply
    121,560.52x = 181,861.26 × 92,063.56
  4. Step 4: Simplify right side
    121,560.52x = 16,742,795,021.69
  5. Step 5: Solve for x
    x = 16,742,795,021.69/121,560.52
  6. Step 6: Final answer
    x = 137,732.18

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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.