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Finding the Fourth Proportional to 392,601.92, 588,890.32 and 165,018.12

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Solution

The fourth proportional to 392,601.92, 588,890.32 and 165,018.12 is: 247,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,601.92 : 588,890.32 = 165,018.12 : x
  2. Step 2: Convert to fraction form
    392,601.92/588,890.32 = 165,018.12/x
  3. Step 3: Cross multiply
    392,601.92x = 588,890.32 × 165,018.12
  4. Step 4: Simplify right side
    392,601.92x = 97,177,573,492.60
  5. Step 5: Solve for x
    x = 97,177,573,492.60/392,601.92
  6. Step 6: Final answer
    x = 247,521.90

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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.