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Finding the Fourth Proportional to 273,876.72, 377,912.30 and 153,003

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Solution

The fourth proportional to 273,876.72, 377,912.30 and 153,003 is: 211,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,876.72 : 377,912.30 = 153,003 : x
  2. Step 2: Convert to fraction form
    273,876.72/377,912.30 = 153,003/x
  3. Step 3: Cross multiply
    273,876.72x = 377,912.30 × 153,003
  4. Step 4: Simplify right side
    273,876.72x = 57,821,715,636.90
  5. Step 5: Solve for x
    x = 57,821,715,636.90/273,876.72
  6. Step 6: Final answer
    x = 211,123.15

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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.