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Finding the Fourth Proportional to 99,596.93, 149,131.74 and 82,144.67

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Solution

The fourth proportional to 99,596.93, 149,131.74 and 82,144.67 is: 122,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,596.93 : 149,131.74 = 82,144.67 : x
  2. Step 2: Convert to fraction form
    99,596.93/149,131.74 = 82,144.67/x
  3. Step 3: Cross multiply
    99,596.93x = 149,131.74 × 82,144.67
  4. Step 4: Simplify right side
    99,596.93x = 12,250,377,568.83
  5. Step 5: Solve for x
    x = 12,250,377,568.83/99,596.93
  6. Step 6: Final answer
    x = 122,999.55

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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.