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Finding the Fourth Proportional to 168,889.16, 233,099.16 and 120,621.80

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Solution

The fourth proportional to 168,889.16, 233,099.16 and 120,621.80 is: 166,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,889.16 : 233,099.16 = 120,621.80 : x
  2. Step 2: Convert to fraction form
    168,889.16/233,099.16 = 120,621.80/x
  3. Step 3: Cross multiply
    168,889.16x = 233,099.16 × 120,621.80
  4. Step 4: Simplify right side
    168,889.16x = 28,116,840,257.69
  5. Step 5: Solve for x
    x = 28,116,840,257.69/168,889.16
  6. Step 6: Final answer
    x = 166,481.02

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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.