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Finding the Fourth Proportional to 251,299.74, 376,963.74 and 80,536.32

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Solution

The fourth proportional to 251,299.74, 376,963.74 and 80,536.32 is: 120,809.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,299.74 : 376,963.74 = 80,536.32 : x
  2. Step 2: Convert to fraction form
    251,299.74/376,963.74 = 80,536.32/x
  3. Step 3: Cross multiply
    251,299.74x = 376,963.74 × 80,536.32
  4. Step 4: Simplify right side
    251,299.74x = 30,359,272,393.04
  5. Step 5: Solve for x
    x = 30,359,272,393.04/251,299.74
  6. Step 6: Final answer
    x = 120,809.01

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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.