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Finding the Fourth Proportional to 251,172.40, 376,807.20 and 73,685.20

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Solution

The fourth proportional to 251,172.40, 376,807.20 and 73,685.20 is: 110,542.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,172.40 : 376,807.20 = 73,685.20 : x
  2. Step 2: Convert to fraction form
    251,172.40/376,807.20 = 73,685.20/x
  3. Step 3: Cross multiply
    251,172.40x = 376,807.20 × 73,685.20
  4. Step 4: Simplify right side
    251,172.40x = 27,765,113,893.44
  5. Step 5: Solve for x
    x = 27,765,113,893.44/251,172.40
  6. Step 6: Final answer
    x = 110,542.06

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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.