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Finding the Fourth Proportional to 408,063.96, 612,095.11 and 108,544.86

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Solution

The fourth proportional to 408,063.96, 612,095.11 and 108,544.86 is: 162,817.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,063.96 : 612,095.11 = 108,544.86 : x
  2. Step 2: Convert to fraction form
    408,063.96/612,095.11 = 108,544.86/x
  3. Step 3: Cross multiply
    408,063.96x = 612,095.11 × 108,544.86
  4. Step 4: Simplify right side
    408,063.96x = 66,439,777,750.27
  5. Step 5: Solve for x
    x = 66,439,777,750.27/408,063.96
  6. Step 6: Final answer
    x = 162,817.07

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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.