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Finding the Fourth Proportional to 181,443.88, 272,135.10 and 55,053.64

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Solution

The fourth proportional to 181,443.88, 272,135.10 and 55,053.64 is: 82,571.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,443.88 : 272,135.10 = 55,053.64 : x
  2. Step 2: Convert to fraction form
    181,443.88/272,135.10 = 55,053.64/x
  3. Step 3: Cross multiply
    181,443.88x = 272,135.10 × 55,053.64
  4. Step 4: Simplify right side
    181,443.88x = 14,982,027,826.76
  5. Step 5: Solve for x
    x = 14,982,027,826.76/181,443.88
  6. Step 6: Final answer
    x = 82,571.14

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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.