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Finding the Fourth Proportional to 101,162.41, 139,604.14 and 55,840.41

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Solution

The fourth proportional to 101,162.41, 139,604.14 and 55,840.41 is: 77,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,162.41 : 139,604.14 = 55,840.41 : x
  2. Step 2: Convert to fraction form
    101,162.41/139,604.14 = 55,840.41/x
  3. Step 3: Cross multiply
    101,162.41x = 139,604.14 × 55,840.41
  4. Step 4: Simplify right side
    101,162.41x = 7,795,551,856.88
  5. Step 5: Solve for x
    x = 7,795,551,856.88/101,162.41
  6. Step 6: Final answer
    x = 77,059.77

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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.