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Finding the Fourth Proportional to 111,892.70, 168,451.56 and 102,094.94

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Solution

The fourth proportional to 111,892.70, 168,451.56 and 102,094.94 is: 153,701.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,892.70 : 168,451.56 = 102,094.94 : x
  2. Step 2: Convert to fraction form
    111,892.70/168,451.56 = 102,094.94/x
  3. Step 3: Cross multiply
    111,892.70x = 168,451.56 × 102,094.94
  4. Step 4: Simplify right side
    111,892.70x = 17,198,051,911.11
  5. Step 5: Solve for x
    x = 17,198,051,911.11/111,892.70
  6. Step 6: Final answer
    x = 153,701.29

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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.