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Finding the Fourth Proportional to 217,732.53, 326,619.33 and 84,622.98

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Solution

The fourth proportional to 217,732.53, 326,619.33 and 84,622.98 is: 126,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,732.53 : 326,619.33 = 84,622.98 : x
  2. Step 2: Convert to fraction form
    217,732.53/326,619.33 = 84,622.98/x
  3. Step 3: Cross multiply
    217,732.53x = 326,619.33 × 84,622.98
  4. Step 4: Simplify right side
    217,732.53x = 27,639,501,030.20
  5. Step 5: Solve for x
    x = 27,639,501,030.20/217,732.53
  6. Step 6: Final answer
    x = 126,942.45

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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.