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Finding the Fourth Proportional to 73,776.17, 101,808.09 and 43,571.21

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Solution

The fourth proportional to 73,776.17, 101,808.09 and 43,571.21 is: 60,126.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,776.17 : 101,808.09 = 43,571.21 : x
  2. Step 2: Convert to fraction form
    73,776.17/101,808.09 = 43,571.21/x
  3. Step 3: Cross multiply
    73,776.17x = 101,808.09 × 43,571.21
  4. Step 4: Simplify right side
    73,776.17x = 4,435,901,160.05
  5. Step 5: Solve for x
    x = 4,435,901,160.05/73,776.17
  6. Step 6: Final answer
    x = 60,126.47

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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.