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Finding the Fourth Proportional to 219,909.44, 303,473.76 and 119,305.28

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Solution

The fourth proportional to 219,909.44, 303,473.76 and 119,305.28 is: 164,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,909.44 : 303,473.76 = 119,305.28 : x
  2. Step 2: Convert to fraction form
    219,909.44/303,473.76 = 119,305.28/x
  3. Step 3: Cross multiply
    219,909.44x = 303,473.76 × 119,305.28
  4. Step 4: Simplify right side
    219,909.44x = 36,206,021,909.45
  5. Step 5: Solve for x
    x = 36,206,021,909.45/219,909.44
  6. Step 6: Final answer
    x = 164,640.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.