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Finding the Fourth Proportional to 192,761.01, 289,160.87 and 66,384.60

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Solution

The fourth proportional to 192,761.01, 289,160.87 and 66,384.60 is: 99,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,761.01 : 289,160.87 = 66,384.60 : x
  2. Step 2: Convert to fraction form
    192,761.01/289,160.87 = 66,384.60/x
  3. Step 3: Cross multiply
    192,761.01x = 289,160.87 × 66,384.60
  4. Step 4: Simplify right side
    192,761.01x = 19,195,828,358.68
  5. Step 5: Solve for x
    x = 19,195,828,358.68/192,761.01
  6. Step 6: Final answer
    x = 99,583.56

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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.