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Finding the Fourth Proportional to 192,760.74, 289,017.72 and 92,721.69

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Solution

The fourth proportional to 192,760.74, 289,017.72 and 92,721.69 is: 139,023.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,760.74 : 289,017.72 = 92,721.69 : x
  2. Step 2: Convert to fraction form
    192,760.74/289,017.72 = 92,721.69/x
  3. Step 3: Cross multiply
    192,760.74x = 289,017.72 × 92,721.69
  4. Step 4: Simplify right side
    192,760.74x = 26,798,211,438.35
  5. Step 5: Solve for x
    x = 26,798,211,438.35/192,760.74
  6. Step 6: Final answer
    x = 139,023.18

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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.