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Finding the Fourth Proportional to 79,676.57, 109,951.54 and 43,866.85

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Solution

The fourth proportional to 79,676.57, 109,951.54 and 43,866.85 is: 60,535.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,676.57 : 109,951.54 = 43,866.85 : x
  2. Step 2: Convert to fraction form
    79,676.57/109,951.54 = 43,866.85/x
  3. Step 3: Cross multiply
    79,676.57x = 109,951.54 × 43,866.85
  4. Step 4: Simplify right side
    79,676.57x = 4,823,227,712.45
  5. Step 5: Solve for x
    x = 4,823,227,712.45/79,676.57
  6. Step 6: Final answer
    x = 60,535.08

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1.5x scale

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.