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Finding the Fourth Proportional to 133,072.80, 183,640.08 and 73,456.80

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Solution

The fourth proportional to 133,072.80, 183,640.08 and 73,456.80 is: 101,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072.80 : 183,640.08 = 73,456.80 : x
  2. Step 2: Convert to fraction form
    133,072.80/183,640.08 = 73,456.80/x
  3. Step 3: Cross multiply
    133,072.80x = 183,640.08 × 73,456.80
  4. Step 4: Simplify right side
    133,072.80x = 13,489,612,628.54
  5. Step 5: Solve for x
    x = 13,489,612,628.54/133,072.80
  6. Step 6: Final answer
    x = 101,370.17

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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.