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Finding the Fourth Proportional to 116,885.09, 161,302.16 and 63,169.97

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Solution

The fourth proportional to 116,885.09, 161,302.16 and 63,169.97 is: 87,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,885.09 : 161,302.16 = 63,169.97 : x
  2. Step 2: Convert to fraction form
    116,885.09/161,302.16 = 63,169.97/x
  3. Step 3: Cross multiply
    116,885.09x = 161,302.16 × 63,169.97
  4. Step 4: Simplify right side
    116,885.09x = 10,189,452,292.29
  5. Step 5: Solve for x
    x = 10,189,452,292.29/116,885.09
  6. Step 6: Final answer
    x = 87,174.96

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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.