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Finding the Fourth Proportional to 181,911.58, 251,039.63 and 101,338.85

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Solution

The fourth proportional to 181,911.58, 251,039.63 and 101,338.85 is: 139,848.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,911.58 : 251,039.63 = 101,338.85 : x
  2. Step 2: Convert to fraction form
    181,911.58/251,039.63 = 101,338.85/x
  3. Step 3: Cross multiply
    181,911.58x = 251,039.63 × 101,338.85
  4. Step 4: Simplify right side
    181,911.58x = 25,440,068,289.57
  5. Step 5: Solve for x
    x = 25,440,068,289.57/181,911.58
  6. Step 6: Final answer
    x = 139,848.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.