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Finding the Fourth Proportional to 150,793.96, 208,079.94 and 87,152.20

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Solution

The fourth proportional to 150,793.96, 208,079.94 and 87,152.20 is: 120,260.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,793.96 : 208,079.94 = 87,152.20 : x
  2. Step 2: Convert to fraction form
    150,793.96/208,079.94 = 87,152.20/x
  3. Step 3: Cross multiply
    150,793.96x = 208,079.94 × 87,152.20
  4. Step 4: Simplify right side
    150,793.96x = 18,134,624,546.87
  5. Step 5: Solve for x
    x = 18,134,624,546.87/150,793.96
  6. Step 6: Final answer
    x = 120,260.95

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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.