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Finding the Fourth Proportional to 71,659.26, 98,899.11 and 43,365.42

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Solution

The fourth proportional to 71,659.26, 98,899.11 and 43,365.42 is: 59,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,659.26 : 98,899.11 = 43,365.42 : x
  2. Step 2: Convert to fraction form
    71,659.26/98,899.11 = 43,365.42/x
  3. Step 3: Cross multiply
    71,659.26x = 98,899.11 × 43,365.42
  4. Step 4: Simplify right side
    71,659.26x = 4,288,801,442.78
  5. Step 5: Solve for x
    x = 4,288,801,442.78/71,659.26
  6. Step 6: Final answer
    x = 59,849.93

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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.