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Finding the Fourth Proportional to 164,491.92, 226,998.60 and 89,040.72

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Solution

The fourth proportional to 164,491.92, 226,998.60 and 89,040.72 is: 122,876.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,491.92 : 226,998.60 = 89,040.72 : x
  2. Step 2: Convert to fraction form
    164,491.92/226,998.60 = 89,040.72/x
  3. Step 3: Cross multiply
    164,491.92x = 226,998.60 × 89,040.72
  4. Step 4: Simplify right side
    164,491.92x = 20,212,118,782.99
  5. Step 5: Solve for x
    x = 20,212,118,782.99/164,491.92
  6. Step 6: Final answer
    x = 122,876.06

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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.