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Finding the Fourth Proportional to 117,026.91, 161,496.92 and 63,311.97

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Solution

The fourth proportional to 117,026.91, 161,496.92 and 63,311.97 is: 87,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,026.91 : 161,496.92 = 63,311.97 : x
  2. Step 2: Convert to fraction form
    117,026.91/161,496.92 = 63,311.97/x
  3. Step 3: Cross multiply
    117,026.91x = 161,496.92 × 63,311.97
  4. Step 4: Simplify right side
    117,026.91x = 10,224,687,837.57
  5. Step 5: Solve for x
    x = 10,224,687,837.57/117,026.91
  6. Step 6: Final answer
    x = 87,370.40

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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.