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Finding the Fourth Proportional to 71,166.03, 98,189.92 and 40,959.91

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Solution

The fourth proportional to 71,166.03, 98,189.92 and 40,959.91 is: 56,513.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,166.03 : 98,189.92 = 40,959.91 : x
  2. Step 2: Convert to fraction form
    71,166.03/98,189.92 = 40,959.91/x
  3. Step 3: Cross multiply
    71,166.03x = 98,189.92 × 40,959.91
  4. Step 4: Simplify right side
    71,166.03x = 4,021,850,286.11
  5. Step 5: Solve for x
    x = 4,021,850,286.11/71,166.03
  6. Step 6: Final answer
    x = 56,513.62

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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.