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Finding the Fourth Proportional to 186,168.78, 256,902.05 and 104,489.44

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Solution

The fourth proportional to 186,168.78, 256,902.05 and 104,489.44 is: 144,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,168.78 : 256,902.05 = 104,489.44 : x
  2. Step 2: Convert to fraction form
    186,168.78/256,902.05 = 104,489.44/x
  3. Step 3: Cross multiply
    186,168.78x = 256,902.05 × 104,489.44
  4. Step 4: Simplify right side
    186,168.78x = 26,843,551,339.35
  5. Step 5: Solve for x
    x = 26,843,551,339.35/186,168.78
  6. Step 6: Final answer
    x = 144,189.33

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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.