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Finding the Fourth Proportional to 78,272.63, 108,016.22 and 44,745.11

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Solution

The fourth proportional to 78,272.63, 108,016.22 and 44,745.11 is: 61,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,272.63 : 108,016.22 = 44,745.11 : x
  2. Step 2: Convert to fraction form
    78,272.63/108,016.22 = 44,745.11/x
  3. Step 3: Cross multiply
    78,272.63x = 108,016.22 × 44,745.11
  4. Step 4: Simplify right side
    78,272.63x = 4,833,197,645.68
  5. Step 5: Solve for x
    x = 4,833,197,645.68/78,272.63
  6. Step 6: Final answer
    x = 61,748.25

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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.