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Finding the Fourth Proportional to 273,420.66, 376,478.37 and 233,043.78

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Solution

The fourth proportional to 273,420.66, 376,478.37 and 233,043.78 is: 320,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,420.66 : 376,478.37 = 233,043.78 : x
  2. Step 2: Convert to fraction form
    273,420.66/376,478.37 = 233,043.78/x
  3. Step 3: Cross multiply
    273,420.66x = 376,478.37 × 233,043.78
  4. Step 4: Simplify right side
    273,420.66x = 87,735,942,433.04
  5. Step 5: Solve for x
    x = 87,735,942,433.04/273,420.66
  6. Step 6: Final answer
    x = 320,882.64

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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.