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Finding the Fourth Proportional to 392,665.22, 588,997.83 and 112,182.47

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Solution

The fourth proportional to 392,665.22, 588,997.83 and 112,182.47 is: 168,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,665.22 : 588,997.83 = 112,182.47 : x
  2. Step 2: Convert to fraction form
    392,665.22/588,997.83 = 112,182.47/x
  3. Step 3: Cross multiply
    392,665.22x = 588,997.83 × 112,182.47
  4. Step 4: Simplify right side
    392,665.22x = 66,075,230,447.45
  5. Step 5: Solve for x
    x = 66,075,230,447.45/392,665.22
  6. Step 6: Final answer
    x = 168,273.70

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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.