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Finding the Fourth Proportional to 69,177, 95,428.16 and 43,674.20

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Solution

The fourth proportional to 69,177, 95,428.16 and 43,674.20 is: 60,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,177 : 95,428.16 = 43,674.20 : x
  2. Step 2: Convert to fraction form
    69,177/95,428.16 = 43,674.20/x
  3. Step 3: Cross multiply
    69,177x = 95,428.16 × 43,674.20
  4. Step 4: Simplify right side
    69,177x = 4,167,747,849.96
  5. Step 5: Solve for x
    x = 4,167,747,849.96/69,177
  6. Step 6: Final answer
    x = 60,247.59

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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.