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Finding the Fourth Proportional to 105,593.78, 157,997.00 and 104,412.80

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Solution

The fourth proportional to 105,593.78, 157,997.00 and 104,412.80 is: 156,229.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,593.78 : 157,997.00 = 104,412.80 : x
  2. Step 2: Convert to fraction form
    105,593.78/157,997.00 = 104,412.80/x
  3. Step 3: Cross multiply
    105,593.78x = 157,997.00 × 104,412.80
  4. Step 4: Simplify right side
    105,593.78x = 16,496,907,849.55
  5. Step 5: Solve for x
    x = 16,496,907,849.55/105,593.78
  6. Step 6: Final answer
    x = 156,229.93

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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.