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Finding the Fourth Proportional to 73,716.54, 101,661.36 and 54,643.83

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Solution

The fourth proportional to 73,716.54, 101,661.36 and 54,643.83 is: 75,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,716.54 : 101,661.36 = 54,643.83 : x
  2. Step 2: Convert to fraction form
    73,716.54/101,661.36 = 54,643.83/x
  3. Step 3: Cross multiply
    73,716.54x = 101,661.36 × 54,643.83
  4. Step 4: Simplify right side
    73,716.54x = 5,555,166,366.48
  5. Step 5: Solve for x
    x = 5,555,166,366.48/73,716.54
  6. Step 6: Final answer
    x = 75,358.48

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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.