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Finding the Fourth Proportional to 251,261.34, 376,833.66 and 73,720.68

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Solution

The fourth proportional to 251,261.34, 376,833.66 and 73,720.68 is: 110,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,261.34 : 376,833.66 = 73,720.68 : x
  2. Step 2: Convert to fraction form
    251,261.34/376,833.66 = 73,720.68/x
  3. Step 3: Cross multiply
    251,261.34x = 376,833.66 × 73,720.68
  4. Step 4: Simplify right side
    251,261.34x = 27,780,433,662.09
  5. Step 5: Solve for x
    x = 27,780,433,662.09/251,261.34
  6. Step 6: Final answer
    x = 110,563.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.