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Finding the Fourth Proportional to 135,902.10, 203,853.15 and 114,906.90

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Solution

The fourth proportional to 135,902.10, 203,853.15 and 114,906.90 is: 172,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,902.10 : 203,853.15 = 114,906.90 : x
  2. Step 2: Convert to fraction form
    135,902.10/203,853.15 = 114,906.90/x
  3. Step 3: Cross multiply
    135,902.10x = 203,853.15 × 114,906.90
  4. Step 4: Simplify right side
    135,902.10x = 23,424,133,521.74
  5. Step 5: Solve for x
    x = 23,424,133,521.74/135,902.10
  6. Step 6: Final answer
    x = 172,360.35

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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.