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Finding the Fourth Proportional to 481,720.66, 722,315.55 and 165,917.14

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Solution

The fourth proportional to 481,720.66, 722,315.55 and 165,917.14 is: 248,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,720.66 : 722,315.55 = 165,917.14 : x
  2. Step 2: Convert to fraction form
    481,720.66/722,315.55 = 165,917.14/x
  3. Step 3: Cross multiply
    481,720.66x = 722,315.55 × 165,917.14
  4. Step 4: Simplify right side
    481,720.66x = 119,844,530,233.53
  5. Step 5: Solve for x
    x = 119,844,530,233.53/481,720.66
  6. Step 6: Final answer
    x = 248,784.29

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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.