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Finding the Fourth Proportional to 342,960.20, 514,440.30 and 106,375.40

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Solution

The fourth proportional to 342,960.20, 514,440.30 and 106,375.40 is: 159,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,960.20 : 514,440.30 = 106,375.40 : x
  2. Step 2: Convert to fraction form
    342,960.20/514,440.30 = 106,375.40/x
  3. Step 3: Cross multiply
    342,960.20x = 514,440.30 × 106,375.40
  4. Step 4: Simplify right side
    342,960.20x = 54,723,792,688.62
  5. Step 5: Solve for x
    x = 54,723,792,688.62/342,960.20
  6. Step 6: Final answer
    x = 159,563.10

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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.