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Finding the Fourth Proportional to 219,591.98, 303,034.41 and 118,989.98

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Solution

The fourth proportional to 219,591.98, 303,034.41 and 118,989.98 is: 164,204.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,591.98 : 303,034.41 = 118,989.98 : x
  2. Step 2: Convert to fraction form
    219,591.98/303,034.41 = 118,989.98/x
  3. Step 3: Cross multiply
    219,591.98x = 303,034.41 × 118,989.98
  4. Step 4: Simplify right side
    219,591.98x = 36,058,058,385.21
  5. Step 5: Solve for x
    x = 36,058,058,385.21/219,591.98
  6. Step 6: Final answer
    x = 164,204.81

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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.