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Finding the Fourth Proportional to 216,769.05, 325,072.77 and 74,574.56

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Solution

The fourth proportional to 216,769.05, 325,072.77 and 74,574.56 is: 111,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,769.05 : 325,072.77 = 74,574.56 : x
  2. Step 2: Convert to fraction form
    216,769.05/325,072.77 = 74,574.56/x
  3. Step 3: Cross multiply
    216,769.05x = 325,072.77 × 74,574.56
  4. Step 4: Simplify right side
    216,769.05x = 24,242,157,165.37
  5. Step 5: Solve for x
    x = 24,242,157,165.37/216,769.05
  6. Step 6: Final answer
    x = 111,834.03

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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.