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Finding the Fourth Proportional to 159,806.52, 220,545.45 and 91,847.19

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Solution

The fourth proportional to 159,806.52, 220,545.45 and 91,847.19 is: 126,756.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,806.52 : 220,545.45 = 91,847.19 : x
  2. Step 2: Convert to fraction form
    159,806.52/220,545.45 = 91,847.19/x
  3. Step 3: Cross multiply
    159,806.52x = 220,545.45 × 91,847.19
  4. Step 4: Simplify right side
    159,806.52x = 20,256,479,849.79
  5. Step 5: Solve for x
    x = 20,256,479,849.79/159,806.52
  6. Step 6: Final answer
    x = 126,756.28

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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.