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Finding the Fourth Proportional to 482,861.65, 724,285.10 and 163,238.03

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Solution

The fourth proportional to 482,861.65, 724,285.10 and 163,238.03 is: 244,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,861.65 : 724,285.10 = 163,238.03 : x
  2. Step 2: Convert to fraction form
    482,861.65/724,285.10 = 163,238.03/x
  3. Step 3: Cross multiply
    482,861.65x = 724,285.10 × 163,238.03
  4. Step 4: Simplify right side
    482,861.65x = 118,230,873,876.88
  5. Step 5: Solve for x
    x = 118,230,873,876.88/482,861.65
  6. Step 6: Final answer
    x = 244,854.56

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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.