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Finding the Fourth Proportional to 71,696.34, 98,965.56 and 43,402.04

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Solution

The fourth proportional to 71,696.34, 98,965.56 and 43,402.04 is: 59,909.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,696.34 : 98,965.56 = 43,402.04 : x
  2. Step 2: Convert to fraction form
    71,696.34/98,965.56 = 43,402.04/x
  3. Step 3: Cross multiply
    71,696.34x = 98,965.56 × 43,402.04
  4. Step 4: Simplify right side
    71,696.34x = 4,295,306,698.91
  5. Step 5: Solve for x
    x = 4,295,306,698.91/71,696.34
  6. Step 6: Final answer
    x = 59,909.71

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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.