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Finding the Fourth Proportional to 87,473.70, 131,099.76 and 55,871.64

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Solution

The fourth proportional to 87,473.70, 131,099.76 and 55,871.64 is: 83,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,473.70 : 131,099.76 = 55,871.64 : x
  2. Step 2: Convert to fraction form
    87,473.70/131,099.76 = 55,871.64/x
  3. Step 3: Cross multiply
    87,473.70x = 131,099.76 × 55,871.64
  4. Step 4: Simplify right side
    87,473.70x = 7,324,758,594.81
  5. Step 5: Solve for x
    x = 7,324,758,594.81/87,473.70
  6. Step 6: Final answer
    x = 83,736.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.