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Finding the Fourth Proportional to 205,208.80, 307,813.20 and 184,472.80

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Solution

The fourth proportional to 205,208.80, 307,813.20 and 184,472.80 is: 276,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,208.80 : 307,813.20 = 184,472.80 : x
  2. Step 2: Convert to fraction form
    205,208.80/307,813.20 = 184,472.80/x
  3. Step 3: Cross multiply
    205,208.80x = 307,813.20 × 184,472.80
  4. Step 4: Simplify right side
    205,208.80x = 56,783,162,880.96
  5. Step 5: Solve for x
    x = 56,783,162,880.96/205,208.80
  6. Step 6: Final answer
    x = 276,709.20

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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.