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Finding the Fourth Proportional to 125,527.79, 173,229.57 and 68,939.16

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Solution

The fourth proportional to 125,527.79, 173,229.57 and 68,939.16 is: 95,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,527.79 : 173,229.57 = 68,939.16 : x
  2. Step 2: Convert to fraction form
    125,527.79/173,229.57 = 68,939.16/x
  3. Step 3: Cross multiply
    125,527.79x = 173,229.57 × 68,939.16
  4. Step 4: Simplify right side
    125,527.79x = 11,942,301,042.96
  5. Step 5: Solve for x
    x = 11,942,301,042.96/125,527.79
  6. Step 6: Final answer
    x = 95,136.71

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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.