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Finding the Fourth Proportional to 127,947.96, 176,568.42 and 71,362.98

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Solution

The fourth proportional to 127,947.96, 176,568.42 and 71,362.98 is: 98,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,947.96 : 176,568.42 = 71,362.98 : x
  2. Step 2: Convert to fraction form
    127,947.96/176,568.42 = 71,362.98/x
  3. Step 3: Cross multiply
    127,947.96x = 176,568.42 × 71,362.98
  4. Step 4: Simplify right side
    127,947.96x = 12,600,448,625.09
  5. Step 5: Solve for x
    x = 12,600,448,625.09/127,947.96
  6. Step 6: Final answer
    x = 98,481.04

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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.