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Finding the Fourth Proportional to 86,550.70, 129,826.05 and 49,096.30

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Solution

The fourth proportional to 86,550.70, 129,826.05 and 49,096.30 is: 73,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,550.70 : 129,826.05 = 49,096.30 : x
  2. Step 2: Convert to fraction form
    86,550.70/129,826.05 = 49,096.30/x
  3. Step 3: Cross multiply
    86,550.70x = 129,826.05 × 49,096.30
  4. Step 4: Simplify right side
    86,550.70x = 6,373,978,698.62
  5. Step 5: Solve for x
    x = 6,373,978,698.62/86,550.70
  6. Step 6: Final answer
    x = 73,644.45

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Similar ratio
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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.