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Finding the Fourth Proportional to 168,358.37, 252,583.68 and 84,016.71

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Solution

The fourth proportional to 168,358.37, 252,583.68 and 84,016.71 is: 126,048.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,358.37 : 252,583.68 = 84,016.71 : x
  2. Step 2: Convert to fraction form
    168,358.37/252,583.68 = 84,016.71/x
  3. Step 3: Cross multiply
    168,358.37x = 252,583.68 × 84,016.71
  4. Step 4: Simplify right side
    168,358.37x = 21,221,249,753.91
  5. Step 5: Solve for x
    x = 21,221,249,753.91/168,358.37
  6. Step 6: Final answer
    x = 126,048.09

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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.