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Finding the Fourth Proportional to 101,253.81, 139,724.47 and 60,463.97

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Solution

The fourth proportional to 101,253.81, 139,724.47 and 60,463.97 is: 83,436.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,253.81 : 139,724.47 = 60,463.97 : x
  2. Step 2: Convert to fraction form
    101,253.81/139,724.47 = 60,463.97/x
  3. Step 3: Cross multiply
    101,253.81x = 139,724.47 × 60,463.97
  4. Step 4: Simplify right side
    101,253.81x = 8,448,295,312.56
  5. Step 5: Solve for x
    x = 8,448,295,312.56/101,253.81
  6. Step 6: Final answer
    x = 83,436.81

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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.