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Finding the Fourth Proportional to 71,042.46, 98,041.86 and 40,837.56

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Solution

The fourth proportional to 71,042.46, 98,041.86 and 40,837.56 is: 56,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,042.46 : 98,041.86 = 40,837.56 : x
  2. Step 2: Convert to fraction form
    71,042.46/98,041.86 = 40,837.56/x
  3. Step 3: Cross multiply
    71,042.46x = 98,041.86 × 40,837.56
  4. Step 4: Simplify right side
    71,042.46x = 4,003,790,340.26
  5. Step 5: Solve for x
    x = 4,003,790,340.26/71,042.46
  6. Step 6: Final answer
    x = 56,357.71

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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.