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Finding the Fourth Proportional to 128,546.89, 192,945.02 and 62,033.84

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Solution

The fourth proportional to 128,546.89, 192,945.02 and 62,033.84 is: 93,110.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,546.89 : 192,945.02 = 62,033.84 : x
  2. Step 2: Convert to fraction form
    128,546.89/192,945.02 = 62,033.84/x
  3. Step 3: Cross multiply
    128,546.89x = 192,945.02 × 62,033.84
  4. Step 4: Simplify right side
    128,546.89x = 11,969,120,499.48
  5. Step 5: Solve for x
    x = 11,969,120,499.48/128,546.89
  6. Step 6: Final answer
    x = 93,110.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.