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Finding the Fourth Proportional to 181,717.31, 272,619.90 and 57,058.31

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Solution

The fourth proportional to 181,717.31, 272,619.90 and 57,058.31 is: 85,601.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,717.31 : 272,619.90 = 57,058.31 : x
  2. Step 2: Convert to fraction form
    181,717.31/272,619.90 = 57,058.31/x
  3. Step 3: Cross multiply
    181,717.31x = 272,619.90 × 57,058.31
  4. Step 4: Simplify right side
    181,717.31x = 15,555,229,403.27
  5. Step 5: Solve for x
    x = 15,555,229,403.27/181,717.31
  6. Step 6: Final answer
    x = 85,601.26

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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.