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Finding the Fourth Proportional to 323,672.76, 485,663.22 and 146,234.04

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Solution

The fourth proportional to 323,672.76, 485,663.22 and 146,234.04 is: 219,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,672.76 : 485,663.22 = 146,234.04 : x
  2. Step 2: Convert to fraction form
    323,672.76/485,663.22 = 146,234.04/x
  3. Step 3: Cross multiply
    323,672.76x = 485,663.22 × 146,234.04
  4. Step 4: Simplify right side
    323,672.76x = 71,020,494,740.01
  5. Step 5: Solve for x
    x = 71,020,494,740.01/323,672.76
  6. Step 6: Final answer
    x = 219,420.67

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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.