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Finding the Fourth Proportional to 151,853.70, 227,775.15 and 68,747.70

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Solution

The fourth proportional to 151,853.70, 227,775.15 and 68,747.70 is: 103,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,853.70 : 227,775.15 = 68,747.70 : x
  2. Step 2: Convert to fraction form
    151,853.70/227,775.15 = 68,747.70/x
  3. Step 3: Cross multiply
    151,853.70x = 227,775.15 × 68,747.70
  4. Step 4: Simplify right side
    151,853.70x = 15,659,017,679.66
  5. Step 5: Solve for x
    x = 15,659,017,679.66/151,853.70
  6. Step 6: Final answer
    x = 103,119.11

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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.