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Finding the Fourth Proportional to 144,676.10, 217,076.15 and 74,604.62

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Solution

The fourth proportional to 144,676.10, 217,076.15 and 74,604.62 is: 111,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,676.10 : 217,076.15 = 74,604.62 : x
  2. Step 2: Convert to fraction form
    144,676.10/217,076.15 = 74,604.62/x
  3. Step 3: Cross multiply
    144,676.10x = 217,076.15 × 74,604.62
  4. Step 4: Simplify right side
    144,676.10x = 16,194,884,411.01
  5. Step 5: Solve for x
    x = 16,194,884,411.01/144,676.10
  6. Step 6: Final answer
    x = 111,938.90

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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.