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Finding the Fourth Proportional to 392,564.20, 588,923.10 and 167,924.20

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Solution

The fourth proportional to 392,564.20, 588,923.10 and 167,924.20 is: 251,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,564.20 : 588,923.10 = 167,924.20 : x
  2. Step 2: Convert to fraction form
    392,564.20/588,923.10 = 167,924.20/x
  3. Step 3: Cross multiply
    392,564.20x = 588,923.10 × 167,924.20
  4. Step 4: Simplify right side
    392,564.20x = 98,894,440,429.02
  5. Step 5: Solve for x
    x = 98,894,440,429.02/392,564.20
  6. Step 6: Final answer
    x = 251,919.15

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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.