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Finding the Fourth Proportional to 71,525.71, 98,723.40 and 41,328.57

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Solution

The fourth proportional to 71,525.71, 98,723.40 and 41,328.57 is: 57,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,525.71 : 98,723.40 = 41,328.57 : x
  2. Step 2: Convert to fraction form
    71,525.71/98,723.40 = 41,328.57/x
  3. Step 3: Cross multiply
    71,525.71x = 98,723.40 × 41,328.57
  4. Step 4: Simplify right side
    71,525.71x = 4,080,096,947.54
  5. Step 5: Solve for x
    x = 4,080,096,947.54/71,525.71
  6. Step 6: Final answer
    x = 57,043.78

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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.