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Finding the Fourth Proportional to 275,672.70, 413,897.85 and 170,696.70

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Solution

The fourth proportional to 275,672.70, 413,897.85 and 170,696.70 is: 256,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,672.70 : 413,897.85 = 170,696.70 : x
  2. Step 2: Convert to fraction form
    275,672.70/413,897.85 = 170,696.70/x
  3. Step 3: Cross multiply
    275,672.70x = 413,897.85 × 170,696.70
  4. Step 4: Simplify right side
    275,672.70x = 70,650,997,132.10
  5. Step 5: Solve for x
    x = 70,650,997,132.10/275,672.70
  6. Step 6: Final answer
    x = 256,285.80

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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.