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Finding the Fourth Proportional to 159,768.90, 239,593.55 and 68,572.79

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Solution

The fourth proportional to 159,768.90, 239,593.55 and 68,572.79 is: 102,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,768.90 : 239,593.55 = 68,572.79 : x
  2. Step 2: Convert to fraction form
    159,768.90/239,593.55 = 68,572.79/x
  3. Step 3: Cross multiply
    159,768.90x = 239,593.55 × 68,572.79
  4. Step 4: Simplify right side
    159,768.90x = 16,429,598,189.50
  5. Step 5: Solve for x
    x = 16,429,598,189.50/159,768.90
  6. Step 6: Final answer
    x = 102,833.52

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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.