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Finding the Fourth Proportional to 251,140.40, 376,759.20 and 73,653.20

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Solution

The fourth proportional to 251,140.40, 376,759.20 and 73,653.20 is: 110,494.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,140.40 : 376,759.20 = 73,653.20 : x
  2. Step 2: Convert to fraction form
    251,140.40/376,759.20 = 73,653.20/x
  3. Step 3: Cross multiply
    251,140.40x = 376,759.20 × 73,653.20
  4. Step 4: Simplify right side
    251,140.40x = 27,749,520,709.44
  5. Step 5: Solve for x
    x = 27,749,520,709.44/251,140.40
  6. Step 6: Final answer
    x = 110,494.05

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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.