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Finding the Fourth Proportional to 104,991.99, 157,553.27 and 42,662.49

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Solution

The fourth proportional to 104,991.99, 157,553.27 and 42,662.49 is: 64,020.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,991.99 : 157,553.27 = 42,662.49 : x
  2. Step 2: Convert to fraction form
    104,991.99/157,553.27 = 42,662.49/x
  3. Step 3: Cross multiply
    104,991.99x = 157,553.27 × 42,662.49
  4. Step 4: Simplify right side
    104,991.99x = 6,721,614,805.84
  5. Step 5: Solve for x
    x = 6,721,614,805.84/104,991.99
  6. Step 6: Final answer
    x = 64,020.26

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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.