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Finding the Fourth Proportional to 247,233.70, 341,189.22 and 139,819.78

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Solution

The fourth proportional to 247,233.70, 341,189.22 and 139,819.78 is: 192,955.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,233.70 : 341,189.22 = 139,819.78 : x
  2. Step 2: Convert to fraction form
    247,233.70/341,189.22 = 139,819.78/x
  3. Step 3: Cross multiply
    247,233.70x = 341,189.22 × 139,819.78
  4. Step 4: Simplify right side
    247,233.70x = 47,705,001,678.77
  5. Step 5: Solve for x
    x = 47,705,001,678.77/247,233.70
  6. Step 6: Final answer
    x = 192,955.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.