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Finding the Fourth Proportional to 95,872.72, 132,310.16 and 53,431.16

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Solution

The fourth proportional to 95,872.72, 132,310.16 and 53,431.16 is: 73,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,872.72 : 132,310.16 = 53,431.16 : x
  2. Step 2: Convert to fraction form
    95,872.72/132,310.16 = 53,431.16/x
  3. Step 3: Cross multiply
    95,872.72x = 132,310.16 × 53,431.16
  4. Step 4: Simplify right side
    95,872.72x = 7,069,485,328.59
  5. Step 5: Solve for x
    x = 7,069,485,328.59/95,872.72
  6. Step 6: Final answer
    x = 73,738.24

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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.