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Finding the Fourth Proportional to 273,516, 377,452.56 and 154,284

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Solution

The fourth proportional to 273,516, 377,452.56 and 154,284 is: 212,912.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,516 : 377,452.56 = 154,284 : x
  2. Step 2: Convert to fraction form
    273,516/377,452.56 = 154,284/x
  3. Step 3: Cross multiply
    273,516x = 377,452.56 × 154,284
  4. Step 4: Simplify right side
    273,516x = 58,234,890,767.04
  5. Step 5: Solve for x
    x = 58,234,890,767.04/273,516
  6. Step 6: Final answer
    x = 212,912.19

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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.