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Finding the Fourth Proportional to 95,471.40, 131,720.88 and 55,170.48

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Solution

The fourth proportional to 95,471.40, 131,720.88 and 55,170.48 is: 76,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,471.40 : 131,720.88 = 55,170.48 : x
  2. Step 2: Convert to fraction form
    95,471.40/131,720.88 = 55,170.48/x
  3. Step 3: Cross multiply
    95,471.40x = 131,720.88 × 55,170.48
  4. Step 4: Simplify right side
    95,471.40x = 7,267,104,175.62
  5. Step 5: Solve for x
    x = 7,267,104,175.62/95,471.40
  6. Step 6: Final answer
    x = 76,118.13

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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.