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Finding the Fourth Proportional to 192,508.54, 288,812.01 and 74,148.10

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Solution

The fourth proportional to 192,508.54, 288,812.01 and 74,148.10 is: 111,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,508.54 : 288,812.01 = 74,148.10 : x
  2. Step 2: Convert to fraction form
    192,508.54/288,812.01 = 74,148.10/x
  3. Step 3: Cross multiply
    192,508.54x = 288,812.01 × 74,148.10
  4. Step 4: Simplify right side
    192,508.54x = 21,414,861,798.68
  5. Step 5: Solve for x
    x = 21,414,861,798.68/192,508.54
  6. Step 6: Final answer
    x = 111,241.10

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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.