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Finding the Fourth Proportional to 162,896.81, 224,806.59 and 91,299.83

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Solution

The fourth proportional to 162,896.81, 224,806.59 and 91,299.83 is: 125,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,896.81 : 224,806.59 = 91,299.83 : x
  2. Step 2: Convert to fraction form
    162,896.81/224,806.59 = 91,299.83/x
  3. Step 3: Cross multiply
    162,896.81x = 224,806.59 × 91,299.83
  4. Step 4: Simplify right side
    162,896.81x = 20,524,802,325.85
  5. Step 5: Solve for x
    x = 20,524,802,325.85/162,896.81
  6. Step 6: Final answer
    x = 125,998.80

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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.