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Finding the Fourth Proportional to 111,902.70, 168,466.62 and 102,104.94

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Solution

The fourth proportional to 111,902.70, 168,466.62 and 102,104.94 is: 153,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,902.70 : 168,466.62 = 102,104.94 : x
  2. Step 2: Convert to fraction form
    111,902.70/168,466.62 = 102,104.94/x
  3. Step 3: Cross multiply
    111,902.70x = 168,466.62 × 102,104.94
  4. Step 4: Simplify right side
    111,902.70x = 17,201,274,127.10
  5. Step 5: Solve for x
    x = 17,201,274,127.10/111,902.70
  6. Step 6: Final answer
    x = 153,716.35

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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.