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Finding the Fourth Proportional to 392,293.35, 588,440.03 and 111,803.31

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Solution

The fourth proportional to 392,293.35, 588,440.03 and 111,803.31 is: 167,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,293.35 : 588,440.03 = 111,803.31 : x
  2. Step 2: Convert to fraction form
    392,293.35/588,440.03 = 111,803.31/x
  3. Step 3: Cross multiply
    392,293.35x = 588,440.03 × 111,803.31
  4. Step 4: Simplify right side
    392,293.35x = 65,789,543,090.50
  5. Step 5: Solve for x
    x = 65,789,543,090.50/392,293.35
  6. Step 6: Final answer
    x = 167,704.97

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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.