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Finding the Fourth Proportional to 181,551.70, 272,329.53 and 55,212.49

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Solution

The fourth proportional to 181,551.70, 272,329.53 and 55,212.49 is: 82,819.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,551.70 : 272,329.53 = 55,212.49 : x
  2. Step 2: Convert to fraction form
    181,551.70/272,329.53 = 55,212.49/x
  3. Step 3: Cross multiply
    181,551.70x = 272,329.53 × 55,212.49
  4. Step 4: Simplify right side
    181,551.70x = 15,035,991,451.83
  5. Step 5: Solve for x
    x = 15,035,991,451.83/181,551.70
  6. Step 6: Final answer
    x = 82,819.34

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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.