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Finding the Fourth Proportional to 95,431.76, 131,691.84 and 52,987.76

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Solution

The fourth proportional to 95,431.76, 131,691.84 and 52,987.76 is: 73,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,431.76 : 131,691.84 = 52,987.76 : x
  2. Step 2: Convert to fraction form
    95,431.76/131,691.84 = 52,987.76/x
  3. Step 3: Cross multiply
    95,431.76x = 131,691.84 × 52,987.76
  4. Step 4: Simplify right side
    95,431.76x = 6,978,055,611.88
  5. Step 5: Solve for x
    x = 6,978,055,611.88/95,431.76
  6. Step 6: Final answer
    x = 73,120.89

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1.5x scale

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.