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Finding the Fourth Proportional to 71,813.98, 107,708 and 25,080.22

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Solution

The fourth proportional to 71,813.98, 107,708 and 25,080.22 is: 37,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,813.98 : 107,708 = 25,080.22 : x
  2. Step 2: Convert to fraction form
    71,813.98/107,708 = 25,080.22/x
  3. Step 3: Cross multiply
    71,813.98x = 107,708 × 25,080.22
  4. Step 4: Simplify right side
    71,813.98x = 2,701,340,335.76
  5. Step 5: Solve for x
    x = 2,701,340,335.76/71,813.98
  6. Step 6: Final answer
    x = 37,615.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.