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Finding the Fourth Proportional to 192,612.78, 288,656.73 and 92,765.70

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Solution

The fourth proportional to 192,612.78, 288,656.73 and 92,765.70 is: 139,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,612.78 : 288,656.73 = 92,765.70 : x
  2. Step 2: Convert to fraction form
    192,612.78/288,656.73 = 92,765.70/x
  3. Step 3: Cross multiply
    192,612.78x = 288,656.73 × 92,765.70
  4. Step 4: Simplify right side
    192,612.78x = 26,777,443,618.16
  5. Step 5: Solve for x
    x = 26,777,443,618.16/192,612.78
  6. Step 6: Final answer
    x = 139,022.15

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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.