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Finding the Fourth Proportional to 275,787.73, 413,298.87 and 125,661.13

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Solution

The fourth proportional to 275,787.73, 413,298.87 and 125,661.13 is: 188,317.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,787.73 : 413,298.87 = 125,661.13 : x
  2. Step 2: Convert to fraction form
    275,787.73/413,298.87 = 125,661.13/x
  3. Step 3: Cross multiply
    275,787.73x = 413,298.87 × 125,661.13
  4. Step 4: Simplify right side
    275,787.73x = 51,935,603,031.92
  5. Step 5: Solve for x
    x = 51,935,603,031.92/275,787.73
  6. Step 6: Final answer
    x = 188,317.31

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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.