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Finding the Fourth Proportional to 80,487.38, 111,071.76 and 44,676.48

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Solution

The fourth proportional to 80,487.38, 111,071.76 and 44,676.48 is: 61,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,487.38 : 111,071.76 = 44,676.48 : x
  2. Step 2: Convert to fraction form
    80,487.38/111,071.76 = 44,676.48/x
  3. Step 3: Cross multiply
    80,487.38x = 111,071.76 × 44,676.48
  4. Step 4: Simplify right side
    80,487.38x = 4,962,295,264.20
  5. Step 5: Solve for x
    x = 4,962,295,264.20/80,487.38
  6. Step 6: Final answer
    x = 61,653.08

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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.