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Finding the Fourth Proportional to 251,272.78, 376,955.34 and 82,803.04

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Solution

The fourth proportional to 251,272.78, 376,955.34 and 82,803.04 is: 124,219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,272.78 : 376,955.34 = 82,803.04 : x
  2. Step 2: Convert to fraction form
    251,272.78/376,955.34 = 82,803.04/x
  3. Step 3: Cross multiply
    251,272.78x = 376,955.34 × 82,803.04
  4. Step 4: Simplify right side
    251,272.78x = 31,213,048,096.23
  5. Step 5: Solve for x
    x = 31,213,048,096.23/251,272.78
  6. Step 6: Final answer
    x = 124,219.77

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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.