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Finding the Fourth Proportional to 143,496.93, 214,996.05 and 100,711.65

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Solution

The fourth proportional to 143,496.93, 214,996.05 and 100,711.65 is: 150,892.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,496.93 : 214,996.05 = 100,711.65 : x
  2. Step 2: Convert to fraction form
    143,496.93/214,996.05 = 100,711.65/x
  3. Step 3: Cross multiply
    143,496.93x = 214,996.05 × 100,711.65
  4. Step 4: Simplify right side
    143,496.93x = 21,652,606,938.98
  5. Step 5: Solve for x
    x = 21,652,606,938.98/143,496.93
  6. Step 6: Final answer
    x = 150,892.48

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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.