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Finding the Fourth Proportional to 153,755.97, 230,736.57 and 53,916.09

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Solution

The fourth proportional to 153,755.97, 230,736.57 and 53,916.09 is: 80,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,755.97 : 230,736.57 = 53,916.09 : x
  2. Step 2: Convert to fraction form
    153,755.97/230,736.57 = 53,916.09/x
  3. Step 3: Cross multiply
    153,755.97x = 230,736.57 × 53,916.09
  4. Step 4: Simplify right side
    153,755.97x = 12,440,413,674.41
  5. Step 5: Solve for x
    x = 12,440,413,674.41/153,755.97
  6. Step 6: Final answer
    x = 80,910.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.