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Finding the Fourth Proportional to 101,374.56, 139,896.05 and 58,362.48

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Solution

The fourth proportional to 101,374.56, 139,896.05 and 58,362.48 is: 80,539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,374.56 : 139,896.05 = 58,362.48 : x
  2. Step 2: Convert to fraction form
    101,374.56/139,896.05 = 58,362.48/x
  3. Step 3: Cross multiply
    101,374.56x = 139,896.05 × 58,362.48
  4. Step 4: Simplify right side
    101,374.56x = 8,164,680,128.39
  5. Step 5: Solve for x
    x = 8,164,680,128.39/101,374.56
  6. Step 6: Final answer
    x = 80,539.73

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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.