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Finding the Fourth Proportional to 275,960.40, 413,940.60 and 109,748.40

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Solution

The fourth proportional to 275,960.40, 413,940.60 and 109,748.40 is: 164,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,960.40 : 413,940.60 = 109,748.40 : x
  2. Step 2: Convert to fraction form
    275,960.40/413,940.60 = 109,748.40/x
  3. Step 3: Cross multiply
    275,960.40x = 413,940.60 × 109,748.40
  4. Step 4: Simplify right side
    275,960.40x = 45,429,318,545.04
  5. Step 5: Solve for x
    x = 45,429,318,545.04/275,960.40
  6. Step 6: Final answer
    x = 164,622.60

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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.