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Finding the Fourth Proportional to 336,992.32, 505,238.78 and 159,291.68

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Solution

The fourth proportional to 336,992.32, 505,238.78 and 159,291.68 is: 238,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,992.32 : 505,238.78 = 159,291.68 : x
  2. Step 2: Convert to fraction form
    336,992.32/505,238.78 = 159,291.68/x
  3. Step 3: Cross multiply
    336,992.32x = 505,238.78 × 159,291.68
  4. Step 4: Simplify right side
    336,992.32x = 80,480,333,270.89
  5. Step 5: Solve for x
    x = 80,480,333,270.89/336,992.32
  6. Step 6: Final answer
    x = 238,819.49

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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.