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Finding the Fourth Proportional to 482,756.72, 724,198.64 and 179,109.54

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Solution

The fourth proportional to 482,756.72, 724,198.64 and 179,109.54 is: 268,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,756.72 : 724,198.64 = 179,109.54 : x
  2. Step 2: Convert to fraction form
    482,756.72/724,198.64 = 179,109.54/x
  3. Step 3: Cross multiply
    482,756.72x = 724,198.64 × 179,109.54
  4. Step 4: Simplify right side
    482,756.72x = 129,710,884,383.48
  5. Step 5: Solve for x
    x = 129,710,884,383.48/482,756.72
  6. Step 6: Final answer
    x = 268,687.89

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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.