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Finding the Fourth Proportional to 392,291.29, 588,436.94 and 111,801.25

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Solution

The fourth proportional to 392,291.29, 588,436.94 and 111,801.25 is: 167,701.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,291.29 : 588,436.94 = 111,801.25 : x
  2. Step 2: Convert to fraction form
    392,291.29/588,436.94 = 111,801.25/x
  3. Step 3: Cross multiply
    392,291.29x = 588,436.94 × 111,801.25
  4. Step 4: Simplify right side
    392,291.29x = 65,787,985,438.18
  5. Step 5: Solve for x
    x = 65,787,985,438.18/392,291.29
  6. Step 6: Final answer
    x = 167,701.88

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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.