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Finding the Fourth Proportional to 101,274.57, 139,757.24 and 55,954.46

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Solution

The fourth proportional to 101,274.57, 139,757.24 and 55,954.46 is: 77,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,274.57 : 139,757.24 = 55,954.46 : x
  2. Step 2: Convert to fraction form
    101,274.57/139,757.24 = 55,954.46/x
  3. Step 3: Cross multiply
    101,274.57x = 139,757.24 × 55,954.46
  4. Step 4: Simplify right side
    101,274.57x = 7,820,039,916.73
  5. Step 5: Solve for x
    x = 7,820,039,916.73/101,274.57
  6. Step 6: Final answer
    x = 77,216.22

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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.