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Finding the Fourth Proportional to 71,568.51, 98,769.02 and 41,359.35

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Solution

The fourth proportional to 71,568.51, 98,769.02 and 41,359.35 is: 57,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.51 : 98,769.02 = 41,359.35 : x
  2. Step 2: Convert to fraction form
    71,568.51/98,769.02 = 41,359.35/x
  3. Step 3: Cross multiply
    71,568.51x = 98,769.02 × 41,359.35
  4. Step 4: Simplify right side
    71,568.51x = 4,085,022,260.54
  5. Step 5: Solve for x
    x = 4,085,022,260.54/71,568.51
  6. Step 6: Final answer
    x = 57,078.49

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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.