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Finding the Fourth Proportional to 108,947.88, 150,324.76 and 63,605.28

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Solution

The fourth proportional to 108,947.88, 150,324.76 and 63,605.28 is: 87,761.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,947.88 : 150,324.76 = 63,605.28 : x
  2. Step 2: Convert to fraction form
    108,947.88/150,324.76 = 63,605.28/x
  3. Step 3: Cross multiply
    108,947.88x = 150,324.76 × 63,605.28
  4. Step 4: Simplify right side
    108,947.88x = 9,561,448,450.73
  5. Step 5: Solve for x
    x = 9,561,448,450.73/108,947.88
  6. Step 6: Final answer
    x = 87,761.68

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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.