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Finding the Fourth Proportional to 392,981.92, 588,979.68 and 168,077.92

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Solution

The fourth proportional to 392,981.92, 588,979.68 and 168,077.92 is: 251,905.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,981.92 : 588,979.68 = 168,077.92 : x
  2. Step 2: Convert to fraction form
    392,981.92/588,979.68 = 168,077.92/x
  3. Step 3: Cross multiply
    392,981.92x = 588,979.68 × 168,077.92
  4. Step 4: Simplify right side
    392,981.92x = 98,994,479,536.67
  5. Step 5: Solve for x
    x = 98,994,479,536.67/392,981.92
  6. Step 6: Final answer
    x = 251,905.94

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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.