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Finding the Fourth Proportional to 139,545.81, 192,628.00 and 98,922.27

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Solution

The fourth proportional to 139,545.81, 192,628.00 and 98,922.27 is: 136,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,545.81 : 192,628.00 = 98,922.27 : x
  2. Step 2: Convert to fraction form
    139,545.81/192,628.00 = 98,922.27/x
  3. Step 3: Cross multiply
    139,545.81x = 192,628.00 × 98,922.27
  4. Step 4: Simplify right side
    139,545.81x = 19,055,198,778.25
  5. Step 5: Solve for x
    x = 19,055,198,778.25/139,545.81
  6. Step 6: Final answer
    x = 136,551.57

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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.