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Finding the Fourth Proportional to 71,605.44, 98,799.60 and 43,310.52

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Solution

The fourth proportional to 71,605.44, 98,799.60 and 43,310.52 is: 59,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,605.44 : 98,799.60 = 43,310.52 : x
  2. Step 2: Convert to fraction form
    71,605.44/98,799.60 = 43,310.52/x
  3. Step 3: Cross multiply
    71,605.44x = 98,799.60 × 43,310.52
  4. Step 4: Simplify right side
    71,605.44x = 4,279,062,051.79
  5. Step 5: Solve for x
    x = 4,279,062,051.79/71,605.44
  6. Step 6: Final answer
    x = 59,758.90

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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.