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Finding the Fourth Proportional to 95,381.39, 131,621.48 and 56,620.87

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Solution

The fourth proportional to 95,381.39, 131,621.48 and 56,620.87 is: 78,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,381.39 : 131,621.48 = 56,620.87 : x
  2. Step 2: Convert to fraction form
    95,381.39/131,621.48 = 56,620.87/x
  3. Step 3: Cross multiply
    95,381.39x = 131,621.48 × 56,620.87
  4. Step 4: Simplify right side
    95,381.39x = 7,452,522,375.16
  5. Step 5: Solve for x
    x = 7,452,522,375.16/95,381.39
  6. Step 6: Final answer
    x = 78,133.93

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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.