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Finding the Fourth Proportional to 71,511.66, 98,336.16 and 62,063.82

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Solution

The fourth proportional to 71,511.66, 98,336.16 and 62,063.82 is: 85,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511.66 : 98,336.16 = 62,063.82 : x
  2. Step 2: Convert to fraction form
    71,511.66/98,336.16 = 62,063.82/x
  3. Step 3: Cross multiply
    71,511.66x = 98,336.16 × 62,063.82
  4. Step 4: Simplify right side
    71,511.66x = 6,103,117,733.73
  5. Step 5: Solve for x
    x = 6,103,117,733.73/71,511.66
  6. Step 6: Final answer
    x = 85,344.37

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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.