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Finding the Fourth Proportional to 273,719.79, 377,729.51 and 159,063.21

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Solution

The fourth proportional to 273,719.79, 377,729.51 and 159,063.21 is: 219,505.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,719.79 : 377,729.51 = 159,063.21 : x
  2. Step 2: Convert to fraction form
    273,719.79/377,729.51 = 159,063.21/x
  3. Step 3: Cross multiply
    273,719.79x = 377,729.51 × 159,063.21
  4. Step 4: Simplify right side
    273,719.79x = 60,082,867,577.01
  5. Step 5: Solve for x
    x = 60,082,867,577.01/273,719.79
  6. Step 6: Final answer
    x = 219,505.02

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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.