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Finding the Fourth Proportional to 101,251.69, 139,726.44 and 55,932.83

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Solution

The fourth proportional to 101,251.69, 139,726.44 and 55,932.83 is: 77,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,251.69 : 139,726.44 = 55,932.83 : x
  2. Step 2: Convert to fraction form
    101,251.69/139,726.44 = 55,932.83/x
  3. Step 3: Cross multiply
    101,251.69x = 139,726.44 × 55,932.83
  4. Step 4: Simplify right side
    101,251.69x = 7,815,295,215.03
  5. Step 5: Solve for x
    x = 7,815,295,215.03/101,251.69
  6. Step 6: Final answer
    x = 77,186.81

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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.