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Finding the Fourth Proportional to 220,087.88, 303,721.27 and 119,485.88

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Solution

The fourth proportional to 220,087.88, 303,721.27 and 119,485.88 is: 164,890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,087.88 : 303,721.27 = 119,485.88 : x
  2. Step 2: Convert to fraction form
    220,087.88/303,721.27 = 119,485.88/x
  3. Step 3: Cross multiply
    220,087.88x = 303,721.27 × 119,485.88
  4. Step 4: Simplify right side
    220,087.88x = 36,290,401,403.35
  5. Step 5: Solve for x
    x = 36,290,401,403.35/220,087.88
  6. Step 6: Final answer
    x = 164,890.51

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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.