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Finding the Fourth Proportional to 392,367.12, 588,556.10 and 111,884.32

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Solution

The fourth proportional to 392,367.12, 588,556.10 and 111,884.32 is: 167,828.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,367.12 : 588,556.10 = 111,884.32 : x
  2. Step 2: Convert to fraction form
    392,367.12/588,556.10 = 111,884.32/x
  3. Step 3: Cross multiply
    392,367.12x = 588,556.10 × 111,884.32
  4. Step 4: Simplify right side
    392,367.12x = 65,850,199,030.35
  5. Step 5: Solve for x
    x = 65,850,199,030.35/392,367.12
  6. Step 6: Final answer
    x = 167,828.03

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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.