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Finding the Fourth Proportional to 251,144.40, 376,716.60 and 84,932.40

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Solution

The fourth proportional to 251,144.40, 376,716.60 and 84,932.40 is: 127,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,144.40 : 376,716.60 = 84,932.40 : x
  2. Step 2: Convert to fraction form
    251,144.40/376,716.60 = 84,932.40/x
  3. Step 3: Cross multiply
    251,144.40x = 376,716.60 × 84,932.40
  4. Step 4: Simplify right side
    251,144.40x = 31,995,444,957.84
  5. Step 5: Solve for x
    x = 31,995,444,957.84/251,144.40
  6. Step 6: Final answer
    x = 127,398.60

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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.