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Finding the Fourth Proportional to 351,657.20, 527,485.80 and 114,942.80

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Solution

The fourth proportional to 351,657.20, 527,485.80 and 114,942.80 is: 172,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,657.20 : 527,485.80 = 114,942.80 : x
  2. Step 2: Convert to fraction form
    351,657.20/527,485.80 = 114,942.80/x
  3. Step 3: Cross multiply
    351,657.20x = 527,485.80 × 114,942.80
  4. Step 4: Simplify right side
    351,657.20x = 60,630,694,812.24
  5. Step 5: Solve for x
    x = 60,630,694,812.24/351,657.20
  6. Step 6: Final answer
    x = 172,414.20

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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.