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Finding the Fourth Proportional to 181,871.38, 272,849.91 and 57,212.38

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Solution

The fourth proportional to 181,871.38, 272,849.91 and 57,212.38 is: 85,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,871.38 : 272,849.91 = 57,212.38 : x
  2. Step 2: Convert to fraction form
    181,871.38/272,849.91 = 57,212.38/x
  3. Step 3: Cross multiply
    181,871.38x = 272,849.91 × 57,212.38
  4. Step 4: Simplify right side
    181,871.38x = 15,610,392,733.89
  5. Step 5: Solve for x
    x = 15,610,392,733.89/181,871.38
  6. Step 6: Final answer
    x = 85,832.05

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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.