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Finding the Fourth Proportional to 275,857.76, 413,744.52 and 131,726.72

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Solution

The fourth proportional to 275,857.76, 413,744.52 and 131,726.72 is: 197,569.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,857.76 : 413,744.52 = 131,726.72 : x
  2. Step 2: Convert to fraction form
    275,857.76/413,744.52 = 131,726.72/x
  3. Step 3: Cross multiply
    275,857.76x = 413,744.52 × 131,726.72
  4. Step 4: Simplify right side
    275,857.76x = 54,501,208,537.57
  5. Step 5: Solve for x
    x = 54,501,208,537.57/275,857.76
  6. Step 6: Final answer
    x = 197,569.97

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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.