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Finding the Fourth Proportional to 104,576.84, 144,243.06 and 68,755.40

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Solution

The fourth proportional to 104,576.84, 144,243.06 and 68,755.40 is: 94,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,576.84 : 144,243.06 = 68,755.40 : x
  2. Step 2: Convert to fraction form
    104,576.84/144,243.06 = 68,755.40/x
  3. Step 3: Cross multiply
    104,576.84x = 144,243.06 × 68,755.40
  4. Step 4: Simplify right side
    104,576.84x = 9,917,489,287.52
  5. Step 5: Solve for x
    x = 9,917,489,287.52/104,576.84
  6. Step 6: Final answer
    x = 94,834.47

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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.