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Finding the Fourth Proportional to 392,980.26, 588,977.42 and 168,076.74

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Solution

The fourth proportional to 392,980.26, 588,977.42 and 168,076.74 is: 251,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,980.26 : 588,977.42 = 168,076.74 : x
  2. Step 2: Convert to fraction form
    392,980.26/588,977.42 = 168,076.74/x
  3. Step 3: Cross multiply
    392,980.26x = 588,977.42 × 168,076.74
  4. Step 4: Simplify right side
    392,980.26x = 98,993,403,846.83
  5. Step 5: Solve for x
    x = 98,993,403,846.83/392,980.26
  6. Step 6: Final answer
    x = 251,904.27

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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.