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Finding the Fourth Proportional to 392,201.85, 588,235.07 and 104,015.49

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Solution

The fourth proportional to 392,201.85, 588,235.07 and 104,015.49 is: 156,005.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,201.85 : 588,235.07 = 104,015.49 : x
  2. Step 2: Convert to fraction form
    392,201.85/588,235.07 = 104,015.49/x
  3. Step 3: Cross multiply
    392,201.85x = 588,235.07 × 104,015.49
  4. Step 4: Simplify right side
    392,201.85x = 61,185,558,521.16
  5. Step 5: Solve for x
    x = 61,185,558,521.16/392,201.85
  6. Step 6: Final answer
    x = 156,005.28

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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.