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Finding the Fourth Proportional to 323,018.11, 484,723.24 and 120,761.48

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Solution

The fourth proportional to 323,018.11, 484,723.24 and 120,761.48 is: 181,215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,018.11 : 484,723.24 = 120,761.48 : x
  2. Step 2: Convert to fraction form
    323,018.11/484,723.24 = 120,761.48/x
  3. Step 3: Cross multiply
    323,018.11x = 484,723.24 × 120,761.48
  4. Step 4: Simplify right side
    323,018.11x = 58,535,896,762.70
  5. Step 5: Solve for x
    x = 58,535,896,762.70/323,018.11
  6. Step 6: Final answer
    x = 181,215.53

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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.