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Finding the Fourth Proportional to 78,499.53, 108,327.11 and 44,511.26

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Solution

The fourth proportional to 78,499.53, 108,327.11 and 44,511.26 is: 61,424.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,499.53 : 108,327.11 = 44,511.26 : x
  2. Step 2: Convert to fraction form
    78,499.53/108,327.11 = 44,511.26/x
  3. Step 3: Cross multiply
    78,499.53x = 108,327.11 × 44,511.26
  4. Step 4: Simplify right side
    78,499.53x = 4,821,775,394.07
  5. Step 5: Solve for x
    x = 4,821,775,394.07/78,499.53
  6. Step 6: Final answer
    x = 61,424.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.