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Finding the Fourth Proportional to 392,059.56, 588,018.84 and 103,873.20

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Solution

The fourth proportional to 392,059.56, 588,018.84 and 103,873.20 is: 155,791.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,059.56 : 588,018.84 = 103,873.20 : x
  2. Step 2: Convert to fraction form
    392,059.56/588,018.84 = 103,873.20/x
  3. Step 3: Cross multiply
    392,059.56x = 588,018.84 × 103,873.20
  4. Step 4: Simplify right side
    392,059.56x = 61,079,398,571.09
  5. Step 5: Solve for x
    x = 61,079,398,571.09/392,059.56
  6. Step 6: Final answer
    x = 155,791.12

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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.