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Finding the Fourth Proportional to 251,559.40, 376,935.90 and 133,076.20

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Solution

The fourth proportional to 251,559.40, 376,935.90 and 133,076.20 is: 199,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,559.40 : 376,935.90 = 133,076.20 : x
  2. Step 2: Convert to fraction form
    251,559.40/376,935.90 = 133,076.20/x
  3. Step 3: Cross multiply
    251,559.40x = 376,935.90 × 133,076.20
  4. Step 4: Simplify right side
    251,559.40x = 50,161,197,215.58
  5. Step 5: Solve for x
    x = 50,161,197,215.58/251,559.40
  6. Step 6: Final answer
    x = 199,401.01

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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.