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Finding the Fourth Proportional to 169,700.72, 254,606.36 and 80,942.67

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Solution

The fourth proportional to 169,700.72, 254,606.36 and 80,942.67 is: 121,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,700.72 : 254,606.36 = 80,942.67 : x
  2. Step 2: Convert to fraction form
    169,700.72/254,606.36 = 80,942.67/x
  3. Step 3: Cross multiply
    169,700.72x = 254,606.36 × 80,942.67
  4. Step 4: Simplify right side
    169,700.72x = 20,608,518,172.67
  5. Step 5: Solve for x
    x = 20,608,518,172.67/169,700.72
  6. Step 6: Final answer
    x = 121,440.37

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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.