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Finding the Fourth Proportional to 99,369.09, 149,039.01 and 32,811.39

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Solution

The fourth proportional to 99,369.09, 149,039.01 and 32,811.39 is: 49,212.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,369.09 : 149,039.01 = 32,811.39 : x
  2. Step 2: Convert to fraction form
    99,369.09/149,039.01 = 32,811.39/x
  3. Step 3: Cross multiply
    99,369.09x = 149,039.01 × 32,811.39
  4. Step 4: Simplify right side
    99,369.09x = 4,890,177,082.32
  5. Step 5: Solve for x
    x = 4,890,177,082.32/99,369.09
  6. Step 6: Final answer
    x = 49,212.26

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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.