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Finding the Fourth Proportional to 80,005.70, 110,408.46 and 48,195.74

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Solution

The fourth proportional to 80,005.70, 110,408.46 and 48,195.74 is: 66,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,005.70 : 110,408.46 = 48,195.74 : x
  2. Step 2: Convert to fraction form
    80,005.70/110,408.46 = 48,195.74/x
  3. Step 3: Cross multiply
    80,005.70x = 110,408.46 × 48,195.74
  4. Step 4: Simplify right side
    80,005.70x = 5,321,217,431.96
  5. Step 5: Solve for x
    x = 5,321,217,431.96/80,005.70
  6. Step 6: Final answer
    x = 66,510.48

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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.