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Finding the Fourth Proportional to 71,382.96, 98,504.36 and 39,549.96

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Solution

The fourth proportional to 71,382.96, 98,504.36 and 39,549.96 is: 54,576.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.96 : 98,504.36 = 39,549.96 : x
  2. Step 2: Convert to fraction form
    71,382.96/98,504.36 = 39,549.96/x
  3. Step 3: Cross multiply
    71,382.96x = 98,504.36 × 39,549.96
  4. Step 4: Simplify right side
    71,382.96x = 3,895,843,497.83
  5. Step 5: Solve for x
    x = 3,895,843,497.83/71,382.96
  6. Step 6: Final answer
    x = 54,576.66

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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.