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Finding the Fourth Proportional to 101,260.44, 139,661.74 and 60,932.16

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Solution

The fourth proportional to 101,260.44, 139,661.74 and 60,932.16 is: 84,039.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,260.44 : 139,661.74 = 60,932.16 : x
  2. Step 2: Convert to fraction form
    101,260.44/139,661.74 = 60,932.16/x
  3. Step 3: Cross multiply
    101,260.44x = 139,661.74 × 60,932.16
  4. Step 4: Simplify right side
    101,260.44x = 8,509,891,487.56
  5. Step 5: Solve for x
    x = 8,509,891,487.56/101,260.44
  6. Step 6: Final answer
    x = 84,039.65

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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.