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Finding the Fourth Proportional to 95,709.78, 132,080.76 and 52,694.28

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Solution

The fourth proportional to 95,709.78, 132,080.76 and 52,694.28 is: 72,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,709.78 : 132,080.76 = 52,694.28 : x
  2. Step 2: Convert to fraction form
    95,709.78/132,080.76 = 52,694.28/x
  3. Step 3: Cross multiply
    95,709.78x = 132,080.76 × 52,694.28
  4. Step 4: Simplify right side
    95,709.78x = 6,959,900,550.05
  5. Step 5: Solve for x
    x = 6,959,900,550.05/95,709.78
  6. Step 6: Final answer
    x = 72,718.80

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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.