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Finding the Fourth Proportional to 111,892.20, 168,450.81 and 102,094.44

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Solution

The fourth proportional to 111,892.20, 168,450.81 and 102,094.44 is: 153,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,892.20 : 168,450.81 = 102,094.44 : x
  2. Step 2: Convert to fraction form
    111,892.20/168,450.81 = 102,094.44/x
  3. Step 3: Cross multiply
    111,892.20x = 168,450.81 × 102,094.44
  4. Step 4: Simplify right side
    111,892.20x = 17,197,891,114.50
  5. Step 5: Solve for x
    x = 17,197,891,114.50/111,892.20
  6. Step 6: Final answer
    x = 153,700.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.