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Finding the Fourth Proportional to 71,433.68, 98,579.38 and 41,225.28

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Solution

The fourth proportional to 71,433.68, 98,579.38 and 41,225.28 is: 56,891.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,433.68 : 98,579.38 = 41,225.28 : x
  2. Step 2: Convert to fraction form
    71,433.68/98,579.38 = 41,225.28/x
  3. Step 3: Cross multiply
    71,433.68x = 98,579.38 × 41,225.28
  4. Step 4: Simplify right side
    71,433.68x = 4,063,962,542.73
  5. Step 5: Solve for x
    x = 4,063,962,542.73/71,433.68
  6. Step 6: Final answer
    x = 56,891.41

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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.