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Finding the Fourth Proportional to 116,958.57, 161,402.91 and 63,243.61

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Solution

The fourth proportional to 116,958.57, 161,402.91 and 63,243.61 is: 87,276.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,958.57 : 161,402.91 = 63,243.61 : x
  2. Step 2: Convert to fraction form
    116,958.57/161,402.91 = 63,243.61/x
  3. Step 3: Cross multiply
    116,958.57x = 161,402.91 × 63,243.61
  4. Step 4: Simplify right side
    116,958.57x = 10,207,702,692.91
  5. Step 5: Solve for x
    x = 10,207,702,692.91/116,958.57
  6. Step 6: Final answer
    x = 87,276.23

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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.