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Finding the Fourth Proportional to 562,099.70, 843,141.74 and 135,631.97

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Solution

The fourth proportional to 562,099.70, 843,141.74 and 135,631.97 is: 203,446.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,099.70 : 843,141.74 = 135,631.97 : x
  2. Step 2: Convert to fraction form
    562,099.70/843,141.74 = 135,631.97/x
  3. Step 3: Cross multiply
    562,099.70x = 843,141.74 × 135,631.97
  4. Step 4: Simplify right side
    562,099.70x = 114,356,970,291.56
  5. Step 5: Solve for x
    x = 114,356,970,291.56/562,099.70
  6. Step 6: Final answer
    x = 203,446.06

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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.