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Finding the Fourth Proportional to 481,665.96, 722,471.16 and 144,699.38

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Solution

The fourth proportional to 481,665.96, 722,471.16 and 144,699.38 is: 217,040.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,665.96 : 722,471.16 = 144,699.38 : x
  2. Step 2: Convert to fraction form
    481,665.96/722,471.16 = 144,699.38/x
  3. Step 3: Cross multiply
    481,665.96x = 722,471.16 × 144,699.38
  4. Step 4: Simplify right side
    481,665.96x = 104,541,128,919.88
  5. Step 5: Solve for x
    x = 104,541,128,919.88/481,665.96
  6. Step 6: Final answer
    x = 217,040.72

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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.