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Finding the Fourth Proportional to 181,910.90, 251,055.52 and 101,351.54

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Solution

The fourth proportional to 181,910.90, 251,055.52 and 101,351.54 is: 139,875.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,910.90 : 251,055.52 = 101,351.54 : x
  2. Step 2: Convert to fraction form
    181,910.90/251,055.52 = 101,351.54/x
  3. Step 3: Cross multiply
    181,910.90x = 251,055.52 × 101,351.54
  4. Step 4: Simplify right side
    181,910.90x = 25,444,863,577.50
  5. Step 5: Solve for x
    x = 25,444,863,577.50/181,910.90
  6. Step 6: Final answer
    x = 139,875.42

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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.