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Finding the Fourth Proportional to 223,951.48, 335,137.95 and 139,751.30

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Solution

The fourth proportional to 223,951.48, 335,137.95 and 139,751.30 is: 209,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,951.48 : 335,137.95 = 139,751.30 : x
  2. Step 2: Convert to fraction form
    223,951.48/335,137.95 = 139,751.30/x
  3. Step 3: Cross multiply
    223,951.48x = 335,137.95 × 139,751.30
  4. Step 4: Simplify right side
    223,951.48x = 46,835,965,029.68
  5. Step 5: Solve for x
    x = 46,835,965,029.68/223,951.48
  6. Step 6: Final answer
    x = 209,134.43

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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.