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Finding the Fourth Proportional to 275,028.59, 412,660.52 and 115,141.88

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Solution

The fourth proportional to 275,028.59, 412,660.52 and 115,141.88 is: 172,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,028.59 : 412,660.52 = 115,141.88 : x
  2. Step 2: Convert to fraction form
    275,028.59/412,660.52 = 115,141.88/x
  3. Step 3: Cross multiply
    275,028.59x = 412,660.52 × 115,141.88
  4. Step 4: Simplify right side
    275,028.59x = 47,514,508,074.58
  5. Step 5: Solve for x
    x = 47,514,508,074.58/275,028.59
  6. Step 6: Final answer
    x = 172,762.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.