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Finding the Fourth Proportional to 71,696.59, 98,965.91 and 43,402.29

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Solution

The fourth proportional to 71,696.59, 98,965.91 and 43,402.29 is: 59,910.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,696.59 : 98,965.91 = 43,402.29 : x
  2. Step 2: Convert to fraction form
    71,696.59/98,965.91 = 43,402.29/x
  3. Step 3: Cross multiply
    71,696.59x = 98,965.91 × 43,402.29
  4. Step 4: Simplify right side
    71,696.59x = 4,295,347,125.93
  5. Step 5: Solve for x
    x = 4,295,347,125.93/71,696.59
  6. Step 6: Final answer
    x = 59,910.06

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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.