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Finding the Fourth Proportional to 104,446.33, 156,721.28 and 41,311.76

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Solution

The fourth proportional to 104,446.33, 156,721.28 and 41,311.76 is: 61,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,446.33 : 156,721.28 = 41,311.76 : x
  2. Step 2: Convert to fraction form
    104,446.33/156,721.28 = 41,311.76/x
  3. Step 3: Cross multiply
    104,446.33x = 156,721.28 × 41,311.76
  4. Step 4: Simplify right side
    104,446.33x = 6,474,430,916.09
  5. Step 5: Solve for x
    x = 6,474,430,916.09/104,446.33
  6. Step 6: Final answer
    x = 61,988.11

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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.