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Finding the Fourth Proportional to 71,519.76, 98,701.74 and 41,310.61

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Solution

The fourth proportional to 71,519.76, 98,701.74 and 41,310.61 is: 57,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,519.76 : 98,701.74 = 41,310.61 : x
  2. Step 2: Convert to fraction form
    71,519.76/98,701.74 = 41,310.61/x
  3. Step 3: Cross multiply
    71,519.76x = 98,701.74 × 41,310.61
  4. Step 4: Simplify right side
    71,519.76x = 4,077,428,840.71
  5. Step 5: Solve for x
    x = 4,077,428,840.71/71,519.76
  6. Step 6: Final answer
    x = 57,011.22

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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.