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Finding the Fourth Proportional to 273,654.10, 377,691.78 and 163,279.84

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Solution

The fourth proportional to 273,654.10, 377,691.78 and 163,279.84 is: 225,355.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,654.10 : 377,691.78 = 163,279.84 : x
  2. Step 2: Convert to fraction form
    273,654.10/377,691.78 = 163,279.84/x
  3. Step 3: Cross multiply
    273,654.10x = 377,691.78 × 163,279.84
  4. Step 4: Simplify right side
    273,654.10x = 61,669,453,407.72
  5. Step 5: Solve for x
    x = 61,669,453,407.72/273,654.10
  6. Step 6: Final answer
    x = 225,355.49

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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.