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Finding the Fourth Proportional to 77,571.33, 107,049.11 and 43,580.49

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Solution

The fourth proportional to 77,571.33, 107,049.11 and 43,580.49 is: 60,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,571.33 : 107,049.11 = 43,580.49 : x
  2. Step 2: Convert to fraction form
    77,571.33/107,049.11 = 43,580.49/x
  3. Step 3: Cross multiply
    77,571.33x = 107,049.11 × 43,580.49
  4. Step 4: Simplify right side
    77,571.33x = 4,665,252,449.96
  5. Step 5: Solve for x
    x = 4,665,252,449.96/77,571.33
  6. Step 6: Final answer
    x = 60,141.45

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1.5x scale

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.