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Finding the Fourth Proportional to 271,874.36, 408,060.60 and 145,657.10

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Solution

The fourth proportional to 271,874.36, 408,060.60 and 145,657.10 is: 218,619.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,874.36 : 408,060.60 = 145,657.10 : x
  2. Step 2: Convert to fraction form
    271,874.36/408,060.60 = 145,657.10/x
  3. Step 3: Cross multiply
    271,874.36x = 408,060.60 × 145,657.10
  4. Step 4: Simplify right side
    271,874.36x = 59,436,923,620.26
  5. Step 5: Solve for x
    x = 59,436,923,620.26/271,874.36
  6. Step 6: Final answer
    x = 218,619.08

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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.