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Finding the Fourth Proportional to 219,879.30, 328,834.80 and 184,449.90

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Solution

The fourth proportional to 219,879.30, 328,834.80 and 184,449.90 is: 275,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,879.30 : 328,834.80 = 184,449.90 : x
  2. Step 2: Convert to fraction form
    219,879.30/328,834.80 = 184,449.90/x
  3. Step 3: Cross multiply
    219,879.30x = 328,834.80 × 184,449.90
  4. Step 4: Simplify right side
    219,879.30x = 60,653,545,976.52
  5. Step 5: Solve for x
    x = 60,653,545,976.52/219,879.30
  6. Step 6: Final answer
    x = 275,849.28

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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.