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Finding the Fourth Proportional to 219,990.44, 303,587.78 and 119,388.52

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Solution

The fourth proportional to 219,990.44, 303,587.78 and 119,388.52 is: 164,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,990.44 : 303,587.78 = 119,388.52 : x
  2. Step 2: Convert to fraction form
    219,990.44/303,587.78 = 119,388.52/x
  3. Step 3: Cross multiply
    219,990.44x = 303,587.78 × 119,388.52
  4. Step 4: Simplify right side
    219,990.44x = 36,244,895,744.29
  5. Step 5: Solve for x
    x = 36,244,895,744.29/219,990.44
  6. Step 6: Final answer
    x = 164,756.69

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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.