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Finding the Fourth Proportional to 275,139.48, 379,696.44 and 160,414.92

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Solution

The fourth proportional to 275,139.48, 379,696.44 and 160,414.92 is: 221,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,139.48 : 379,696.44 = 160,414.92 : x
  2. Step 2: Convert to fraction form
    275,139.48/379,696.44 = 160,414.92/x
  3. Step 3: Cross multiply
    275,139.48x = 379,696.44 × 160,414.92
  4. Step 4: Simplify right side
    275,139.48x = 60,908,974,046.88
  5. Step 5: Solve for x
    x = 60,908,974,046.88/275,139.48
  6. Step 6: Final answer
    x = 221,374.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.