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Finding the Fourth Proportional to 392,291.04, 588,436.56 and 111,801

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Solution

The fourth proportional to 392,291.04, 588,436.56 and 111,801 is: 167,701.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,291.04 : 588,436.56 = 111,801 : x
  2. Step 2: Convert to fraction form
    392,291.04/588,436.56 = 111,801/x
  3. Step 3: Cross multiply
    392,291.04x = 588,436.56 × 111,801
  4. Step 4: Simplify right side
    392,291.04x = 65,787,795,844.56
  5. Step 5: Solve for x
    x = 65,787,795,844.56/392,291.04
  6. Step 6: Final answer
    x = 167,701.50

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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.