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Finding the Fourth Proportional to 78,467.53, 117,736.06 and 44,732.31

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Solution

The fourth proportional to 78,467.53, 117,736.06 and 44,732.31 is: 67,118.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,467.53 : 117,736.06 = 44,732.31 : x
  2. Step 2: Convert to fraction form
    78,467.53/117,736.06 = 44,732.31/x
  3. Step 3: Cross multiply
    78,467.53x = 117,736.06 × 44,732.31
  4. Step 4: Simplify right side
    78,467.53x = 5,266,606,449.72
  5. Step 5: Solve for x
    x = 5,266,606,449.72/78,467.53
  6. Step 6: Final answer
    x = 67,118.29

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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.