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Finding the Fourth Proportional to 73,571.32, 110,383.62 and 45,458.56

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Solution

The fourth proportional to 73,571.32, 110,383.62 and 45,458.56 is: 68,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,571.32 : 110,383.62 = 45,458.56 : x
  2. Step 2: Convert to fraction form
    73,571.32/110,383.62 = 45,458.56/x
  3. Step 3: Cross multiply
    73,571.32x = 110,383.62 × 45,458.56
  4. Step 4: Simplify right side
    73,571.32x = 5,017,880,412.79
  5. Step 5: Solve for x
    x = 5,017,880,412.79/73,571.32
  6. Step 6: Final answer
    x = 68,204.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.